Definition of Cnida. Meaning of Cnida. Synonyms of Cnida

Here you will find one or more explanations in English for the word Cnida. Also in the bottom left of the page several parts of wikipedia pages related to the word Cnida and, of course, Cnida synonyms and on the right images related to the word Cnida.

Definition of Cnida

cnida
Lasso Lass"o (l[a^]s"s[-o]) n.; pl. Lassos (-s[=o]z). [Sp. lazo, L. laqueus. See Lace.] A rope or long thong of leather with, a running noose, used for catching horses, cattle, etc. Lasso cell (Zo["o]l.), one of a peculiar kind of defensive and offensive stinging cells, found in great numbers in all c[oe]lenterates, and in a few animals of other groups. They are most highly developed in the tentacles of jellyfishes, hydroids, and Actini[ae]. Each of these cells is filled with, fluid, and contains a long, slender, often barbed, hollow thread coiled up within it. When the cell contracts the thread is quickly ejected, being at the same time turned inside out. The thread is able to penetrate the flesh of various small, soft-bodied animals, and carries a subtle poison by which they are speedily paralyzed and killed. The threads, at the same time, hold the prey in position, attached to the tentacles. Some of the jellyfishes, as the Portuguese man-of-war, and Cyanea, are able to penetrate the human skin, and inflict painful stings in the same way. Called also nettling cell, cnida, cnidocell.
Cnida
Cnida Cni"da, n.; pl. Cnid[ae]. [NL., fr. Gr. ? nettle, sea nettle.] (Zo["o]l.) One of the peculiar stinging, cells found in C[oe]lenterata; a nematocyst; a lasso cell.

Meaning of Cnida from wikipedia

- containing one large secretory organelle called a cnidocyst (also known as a cnida (pl.: cnidae)) that can deliver a sting to other organisms. The presence...
- capsule, the cnida, which houses the thread, its payload and a mixture of chemicals that may include venom or adhesives or both. ("cnida" is derived from...
- the gills in bony fishes and chimaeras. The cover that rapidly opens a cnida of a cnidarian such as a jellyfish or a sea anemone. The lid may be a single...
- opening surrounded by one to twelve thin, mobile tentacles. Each tentacle, or cnida (plural: cnidae), is clothed with highly specialised stinging cells called...
- production caused the formation of the tube, however it is now understood that cnida are responsible. The tube is made by forming woven layers of adhesive tissues...