quadrigeminal rhythm n.
A cardiac dysrhythmia in which heartbeats occur in groups of four, usually composed of one sinus beat followed by three extrasystolic beats.
- Quadrigeminal body
quadrigeminal body n. Either of the eminences that together form the lamina tecti mesencephali and are designated inferior and anterior.
quadrigeminum quad·ri·gem·i·num (kwŏd’rə-jěm’ə-nəm) n. One of the quadrigeminal bodies of the mesencephalon.
adjective 1. (in computer typesetting) flush right.
[kwod-ruh-lat-er-uh l] /ˌkwɒd rəˈlæt ər əl/ adjective 1. having four sides. noun 2. a plane figure having four sides and four angles. 3. something of this form. 4. Geometry. 5. the space enclosed between and defended by four fortresses. /ˌkwɒdrɪˈlætərəl/ adjective 1. having or formed by four sides noun 2. Also called tetragon. a polygon […]