chĕlīdŏnĭus — Lewis & Short
chĕlīdŏnĭus, a, um, adj., = xelido/nios,
I pertaining to the swallow:
lapilli,found in the crop of young swallows, swallow-stone, Plin. 11, 37, 79, § 203:
ficus,a particular reddish species of fig, Col. 10, 415; Plin. 15, 18, 19, § 71:
gemma,Plin. 37, 10, 56, § 154.—
B Subst.: chĕlīdŏnĭa, ae, f. (sc. herba): Chelidonium majus, Linn.; swallowwort, celandine, Plin. 25, 8, 50, §§ 89 and 90; also herba chelidoniae in Ser. Samm. 37, 699.