Definition of ASTOS. Meaning of ASTOS. Synonyms of ASTOS
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Definition of ASTOS
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blastosphere Morula Mor"u*la, n.; pl. Morul[ae]. [NL., dim. of L. morum a
mulberry.] (Biol.)
The sphere or globular mass of cells (blastomeres), formed by
the clevage of the ovum or egg in the first stages of its
development; -- called also mulberry mass, segmentation
sphere, and blastosphere. See Segmentation.
Blastosphere Blastosphere Blas"to*sphere, n. [Gr. blasto`s sprout + E.
sphere.] (Biol.)
The hollow globe or sphere formed by the arrangement of the
blastomeres on the periphery of an impregnated ovum.
Note: [See Illust. of Invagination.]
Blastostyle Blastostyle Blas"to*style, n. [Gr. blasto`s sprout, bud + ? a
pillar.] (Zo["o]l.)
In certain hydroids, an imperfect zooid, whose special
function is to produce medusoid buds. See Hydroidea, and
Athecata.
Ramphastos ariel Ariel A"ri*el, n., or Ariel gazelle A"ri*el ga*zelle" [Ar.
aryil, ayyil, stag.] (Zo["o]l.)
(a) A variety of the gazelle (Antilope, or Gazella,
dorcas), found in Arabia and adjacent countries.
(b) A squirrel-like Australian marsupial, a species of
Petaurus.
(c) A beautiful Brazilian toucan Ramphastos ariel).
Ramphastos toco Toco To"co, n. (Zo["o]l.)
A toucan (Ramphastos toco) having a very large beak. See
Illust. under Toucan.