a. [f. proper name Cassini + -IAN.] Of or pertaining to G. D. Cassini (1625–1712), or his descendants, a celebrated family of French astronomers, or to their scientific researches. Cassinian oval: = CASSINOID.
1726. trans. Gregory’s Astron., I. 394. This Cassinian Hypothesis … has this Physical Disadvantage.
1886. Academy, 10 July, 29/2. The curve of sines, the cassinian oval, the catenary, and such like curves.
1882. Minchin, Unipl. Kinemat., 204. One of the Cassinian ellipses.
