| n. | 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. |
| 2. | The stomach. | |
| 3. | Fig.: Any cavity, or hollow place, in which any function may be conceived of as operating. |
| Noun | 1. | ventricle - one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid |
| 2. | ventricle - a chamber of the heart that receives blood from an atrium and pumps it to the arteries Synonyms: heart ventricle |