ThallineThal"line\, a. (Bot.) Consisting of a thallus.
ThallineThal"line\, n. [Gr. ? a young shoot or branch.] (Chem.) An artificial alkaloid of the quinoline series, obtained as a white crystalline substance, C10H13NO, whose salts are valuable as antipyretics; -- so called from the green color produced in its solution by certain oxidizing agents.