Ven"tri*cle(?), n. [L. ventriculus the stomach, a ventricle, dim. of venter the belly: cf. F. ventricule. See Ventral.] 1. (Anat.) A cavity, or one of the cavities, of an organ, as of the larynx or the brain; specifically, the posterior chamber, or one of the two posterior chambers, of the heart, which receives the blood from the auricle and forces it out from the heart. See Heart.
The principal ventricles of the brain are the fourth in the medulla, the third in the midbrain, the first and second, or lateral, ventricles in the cerebral hemispheres, all of which are connected with each other, and the fifth, or pseudocle, situated between the hemispheres, in front of, or above, the fornix, and entirely disconnected with the other cavities. See Brain, and Clia.
2. The stomach.
Whether I will or not, while I live, my heart beats, and my ventricle digests what is in it.Sir M. Hale.
3. Fig.: Any cavity, or hollow place, in which any function may be conceived of as operating.
These [ideas] are begot on the ventricle of memory.Shak.
Ven"tri*cous(?), } a. [NL. ventricosus, fr. L. venter belly.] (Nat. Hist.) Swelling out on one side or unequally; bellied; ventricular; as, a ventricose corolla.
(Zol.) (a) A spiral shell having the body whorls rounded or swollen in the middle. (b) A bivalve shell in which the valves are strongly convex.
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