Decíduus, Adiectiuum Plin. Subiecte to falling off: hanging downe: falling downe.Decidui ad terras. Plin. Testes pecori armentóque ad ctura decidui, suibus adnexi. Plin. The stones of sheepe and rudder beastes hang dowue to their shanckes, but, &c.Decídium pro Occasu.Senec.A fall.
Lewis and Short: Latin dictionary
dēcĭdŭus, a, um, adj. [1. decĭdo], falling down or off, deciduous (chiefly in Pliny: folia, Laber. ap. Non. 100, 10; Plin. 18, 25, 60, 226; 16, 24, 38, 92 (where Freund assumes decīdua, cut off, cf. Cato R. R. 5, 7, but without necessity): (ignes) decidui ad terras fulminum nomen habent, Plin. 2, 20, 18, 82: sidera,