Webster's 1828 Dictionary
CHELIDON
n.A brown fly with silvery wings.
Webster's 1913 Dictionary
CHELIDON
Chel "i *don, n. Etym: [NL. , fr. Gr. (Anat. )
Defn: The hollow at the flexure of the arm.
CHELIDONIC
Chel `i *don "ic, a. Etym: [See Celandine. ] (Chem. )
Defn: Of, pertaining to, or derived from, the celandine. Cheidonic acid, a weak acid extracted fron the celandine (Chelidonium majus ), as a white crystalline substance.
CHELIDONIUS
Chel `i *do "ni *us, n. Etym: [L. (sc. lapillus.)]
Defn: A small stone taken from the gizzard of a young swallow. -- anciently worn as a medicinal charm.
Duden Dictionary
Chelidonin
Che li do nin Substantiv, Neutrum , das |Chelidon i n |das Chelidonin; Genitiv: des Chelidonins griechisch-neulateinisch Alkaloid aus dem Schöllkraut von beruhigender Wirkung