VESICLE

vesicle, cyst

(noun) a small anatomically normal sac or bladderlike structure (especially one containing fluid)

Source: WordNet® 3.1


Etymology

Noun

vesicle (plural vesicles)

(cytology) A membrane-bound compartment found in a cell.

A small bladder-like cell or cavity; a vesicula.

(anatomy) A small sac or cyst or vacuole, especially one containing fluid. A blister formed in or beneath the skin, containing serum. A bleb.

(anatomy) A pocket of embryonic tissue that is the beginning of an organ.

(geology) A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.

Source: Wiktionary


Ves"i*cle, n. Etym: [L. vesicula, dim. of vesica a bladder, blister; akin to Skr. vasti bladder: cf. F. vésicule.]

Definition: A bladderlike vessel; a membranous cavity; a cyst; a cell. Specifically: --(a) (Bot.)

Definition: A small bladderlike body in the substance of vegetable, or upon the surface of a leaf. (b) (Med.)

Definition: A small, and more or less circular, elevation of the cuticle, containing a clear watery fluid. (c) (Anat.) A cavity or sac, especially one filled with fluid; as, the umbilical vesicle. (d) (Zoöl.) A small convex hollow prominence on the surface of a shell or a coral. (e) (Geol.) A small cavity, nearly spherical in form, and usually of the size of a pea or smaller, such as are common in some volcanic rocks. They are produced by the liberation of watery vapor in the molten mass.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

29 April 2024

SUBDUCTION

(noun) a geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate


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