a. [f. L. cæsi-us bluish grey + -OUS.] Bluish or greyish green. (Chiefly in Bot.)
1835. Lindley, Introd. Bot. (1848), II. 366. Cæsious…; like glaucous, but greener.
[1880. Gray, Bot. Text-bk., 400. Cæsius.… Lavender-color; pale green with whitish or gray.]
