Definition of 4. Meaning of 4. Synonyms of 4

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Definition of 4

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As2CH34
Cacodyl Cac"o*dyl, n. [Gr. ??????? ill-smelling (????? bad + ????? to smell) + -yl.] (Chem.) Alkarsin; a colorless, poisonous, arsenical liquid, As2(CH3)4, spontaneously inflammable and possessing an intensely disagreeable odor. It is the type of a series of compounds analogous to the nitrogen compounds called hydrazines. [Written also cacodyle, and kakodyl.]
BaSO4
Isomorphism I`so*mor"phism, n. [Cf. F. isomorphisme.] (Crystallog.) A similarity of crystalline form between substances of similar composition, as between the sulphates of barium (BaSO4) and strontium (SrSO4). It is sometimes extended to include similarity of form between substances of unlike composition, which is more properly called hom[oe]omorphism.
C10H14N2
Isonicotine I`so*nic"o*tine, n. [Iso- + nicotine.] (Chem.) A crystalline, nitrogenous base, C10H14N2, isomeric with nicotine.
C10H16O4
Camphoric Cam*phor"ic, a. [Cf. F. camphorique.] (Chem.) Of, pertaining to, or derived from, camphor. Camphoric acid, a white crystallizable substance, C10H16O4, obtained from the oxidation of camphor. Note: Other acid of camphor are campholic acid, C10H18O2, and camphoronic acid, C9H12O5, white crystallizable substances.
C10H8O4
Furoin Fu"ro*in, n. [See Furfurol.] (Chem.) A colorless, crystalline substance, C10H8O4, from furfurol.
C11H24
Undecane Un"de*cane, n. [L. undecim eleven.] (Chem.) A liquid hydrocarbon, C11H24, of the methane series, found in petroleum; -- so called from its containing eleven carbon atoms in the molecule.
C11H24
Endecane En"de*cane, n. [Gr. ? eleven.] (Chem.) One of the higher hydrocarbons of the paraffin series, C11H24, found as a constituent of petroleum. [Written also hendecane.]
C11H24
Hendecane Hen"de*cane, n. [Gr. "e`ndeka eleven.] (Chem.) A hydrocarbon, C11H24, of the paraffin series; -- so called because it has eleven atoms of carbon in each molecule. Called also endecane, undecane.
C12H24O2
Lauric Lau"ric, a. Pertaining to, or derived from, the European bay or laurel (Laurus nobilis). Lauric acid (Chem.), a white, crystalline substance, C12H24O2, resembling palmitic acid, and obtained from the fruit of the bay tree, and other sources.
C12H4N2O8
Euchroic Eu*chro"ic, a. [Gr. ? well-colored; ? well + ? color.] (Chem.) Having a fine color. Euchroic acid (Chem.), an organic, imide acid, obtained as a colorless crystalline substance, C12H4N2O8 by heating an ammonium salt of mellitic acid. By reduction it is changed to a dark blue substance (euchrone), -- hence its name.
C14H10
Phenanthrene Phe*nan"threne, n. [Phenyl + antracene.] (Chem.) A complex hydrocarbon, C14H10, found in coal tar, and obtained as a white crystalline substance with a bluish fluorescence.
C14H10
Tolane To*lane", n. [From Toluene.] (Chem.) A hydrocarbon, C14H10, related both to the acetylene and the aromatic series, and produced artificially as a white crystalline substance; -- called also diphenyl acetylene.
C14H10O9
Tannic Tan"nic, a. Of or pertaining to tan; derived from, or resembling, tan; as, tannic acid. Tannic acid. (Chem.) (a) An acid obtained from nutgalls as a yellow amorphous substance, C14H10O9, having an astringent taste, and forming with ferric salts a bluish-black compound, which is the basis of common ink. Called also tannin, and gallotannic acid. (b) By extension, any one of a series of astringent substances resembling tannin proper, widely diffused through the vegetable kingdom, as in oak bark, willow, catechu, tea, coffee, etc.
C14H12
Stilbene Stil"bene, n. [See Stilbite.] (Chem.) A hydrocarbon, C14H12, produced artificially in large, fine crystals; -- called also diphenyl ethylene, toluylene, etc.
C14H12O2
Benzoin Ben*zoin" (b[e^]n*zoin"), n. [Cf. F. benjoin, Sp. benjui, Pg. beijoin; all fr. Ar. lub[=a]n-j[=a]w[=i] incense form Sumatra (named Java in Arabic), the first syllable being lost. Cf. Benjamin.] Note: [Called also benjamin.] 1. A resinous substance, dry and brittle, obtained from the Styrax benzoin, a tree of Sumatra, Java, etc., having a fragrant odor, and slightly aromatic taste. It is used in the preparation of benzoic acid, in medicine, and as a perfume. 2. A white crystalline substance, C14H12O2, obtained from benzoic aldehyde and some other sources. 3. (Bot.) The spicebush (Lindera benzoin). Flowers of benzoin, benzoic acid. See under Benzoic.
C14H14
Ditolyl Di*tol"yl, n. [Pref. di- + tolyl.] (Chem.) A white, crystalline, aromatic hydrocarbon, C14H14, consisting of two radicals or residues of toluene.
C14H14O4
Curcumin Cur"cu*min (-m?n), n. (Chem.) The coloring principle of turmeric, or curcuma root, extracted as an orange yellow crystalline substance, C14H14O4, with a green fluorescence. Note: It possesses acid properties and with alkalies forms brownish salts. This change in color from yellow to brown is the characteristic reaction of tumeric paper. See Turmeric paper, under Turmeric.
C14H22O2NCl
Storm Storm, n. Anticyclonic storm (Meteor.), a storm characterized by a central area of high atmospheric pressure, and having a system of winds blowing spirally outward in a direction contrary to that cyclonic storms. It is attended by low temperature, dry air, infrequent precipitation, and often by clear sky. Called also high-area storm, anticyclone. When attended by high winds, snow, and freezing temperatures such storms have various local names, as blizzard, wet norther, purga, buran, etc. Cyclonic storm. (Meteor.) A cyclone, or low-area storm. See Cyclone, above. Stovain Sto"va*in, n. Also -ine -ine . [Stove (a translation of the name of the discoverer, Fourneau + -in, -ine.] (Pharm.) A substance, C14H22O2NCl, the hydrochloride of an amino compound containing benzol, used, in solution with strychnine, as a local an[ae]sthetic, esp. by injection into the sheath of the spinal cord, producing an[ae]sthesia below the point of introduction.
C14H24O3
Lichenic Li*chen"ic (l[-i]*k[e^]n"[i^]k), a. Of, pertaining to, or obtained from, lichens. Lichenic acid. (a) An organic acid, C14H24O3, obtained from Iceland moss. (b) An old name of fumaric acid.
C14H30
Tetradecane Tet`ra*dec"ane, n. [Tetra- + Gr. ? ten.] (Chem.) A light oily hydrocarbon, C14H30, of the marsh-gas series; -- so called from the fourteen carbon atoms in the molecule.
C14H6O2OH2
Alizarin A*liz"a*rin, n. [F. alizarine, fr. alizari.] (Chem.) A coloring principle, C14H6O2(OH)2, found in madder, and now produced artificially from anthracene. It produces the Turkish reds.
C14H8O9
Ellagic El*lag"ic, a. [F., fr. galle gall (with the letters reversed).] (Chem.) Pertaining to, or derived from, gallnuts or gallic acid; as, ellagic acid. Ellagic acid (Chem.), a white crystalline substance, C14H8O9, found in bezoar stones, and obtained by the oxidation of gallic acid.
C15H24
Cedrene Ce"drene (s[=e]"dr[=e]n), n. (Chem.) A rich aromatic oil, C15H24, extracted from oil of red cedar, and regarded as a polymeric terpene; also any one of a class of similar substances, as the essential oils of cloves, cubebs, juniper, etc., of which cedrene proper is the type. [Written also cedren.]
C16H14N2
Flavaniline Fla*van"i*line (? or ?; 104), n. [L. flavus yellow + E. aniline.] (Chem.) A yellow, crystalline, organic dyestuff, C16H14N2, of artifical production. It is a strong base, and is a complex derivative of aniline and quinoline.
C16H14O6
Haematexylin H[ae]m`a*tex"y*lin, n. [See H[ae]matoxylon.] (Chem.) The coloring principle of logwood. It is obtained as a yellow crystalline substance, C16H14O6, with a sweetish taste. Formerly called also hematin.
C16H34
Hecdecane Hec"de*cane, n. [Gr. ? six + ? ten.] (Chem.) A white, semisolid, spermaceti-like hydrocarbon, C16H34, of the paraffin series, found dissolved as an important ingredient of kerosene, and so called because each molecule has sixteen atoms of carbon; -- called also hexadecane.
C17H21NO4
Cocaine Co"ca*ine, n. (Chem.) A powerful alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain.
C17H32O4
Roccellic Roc*cel"lic, a. [F. roccellique, fr. roccelle archil, It. & NL. roccella, fr. It. rocca a rock, because archil grows on rock.] (Chem.) Pertaining to, or designating, a dibasic acid of the oxalic series found in archil (Roccella tinctoria, etc.), and other lichens, and extracted as a white crystalline substance C17H32O4.
C17H34O2
Margaric Mar*gar"ic, a. [Cf. F. margarique. See Margarite.] Pertaining to, or resembling, pearl; pearly. Margaric acid. (a) (Physiol. Chem.) A fatty body, crystallizing in pearly scales, and obtained by digesting saponified fats (soaps) with an acid. It was formerly supposed to be an individual fatty acid, but is now known to be simply an intimate mixture of stearic and palmitic acids. (b) (Chem.) A white, crystalline substance, C17H34O2 of the fatty acid series, intermediate between palmitic and stearic acids, and obtained from the wax of certain lichens, from cetyl cyanide, and other sources.
C19H40
Nondecane Non*dec"ane, n. [L. nonus ninth + decem ten.] (Chem.) A hydrocarbon of the paraffin series, a white waxy substance, C19H40; -- so called from the number of carbon atoms in the molecule.

Meaning of 4 from wikipedia

- 4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is a square number, the smallest semiprime and composite...
- hypercubed, zenzizenzic, biquadrate or supercubed instead of “to the power of 4”. The sequence of fourth powers of integers, known as biquadrates or tesseractic...
- 4+1⁄2 is an EP by British musician Steven Wilson. It was released on 22 January 2016. It collects songs that were written during the sessions for Wilson's...
- 4/4 may refer to: 4 4 time April 4 4/4 (EP series) Four by four (disambiguation) This disambiguation page lists articles ****ociated with the same number...
- The BE-4 (Blue Engine 4) is an oxygen-rich, liquefied-methane-fueled, staged-combustion, rocket engine. It is produced by Blue Origin. BE-4 was developed...
- 4:4:4 may refer to: Digital images or video in which all color components have the same sampling rate, thus not using chroma subsampling Another name...
- as a Northern. The 4-8-4 wheel arrangement was a progression from the 4-8-2 Mountain type and, like the 2-8-4 Berkshire and 4-6-4 Hudson types, an example...
- grouped into two 4-w**** "months" and one 5-w**** "month". The longer "month" may be set as the first (5–4–4), second (4–5–4), or third (4–4–5) unit. Its major...
- referred to the model as "4/4", "4-4", "Four Four", and similar names, but from the outset the factory designation was always "4/4". Apart from a break during...
- 4×4=12 (pronounced "four times four equals twelve") is the fifth studio album by Canadian electronic music producer Deadmau5, released on December 7,...