thalline

from The Century Dictionary.

• noun A trade-name of tetrahydroparamethoxyquinoline, a colorless compound prepared by the reduction of the corresponding quinoline derivative. It crystallizes in thick trimetric prisms, melts at 42–43° C., and boils at 283° C. In the form of its sulphate and other salts it is used in medicine as an antipyretic.
• In botany, relating to, of the character of, or belonging to a thallus.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Bot.) Consisting of a thallus.
• noun (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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective botany Having a thallus
• noun obsolete, medicine Any of several derivatives of quinoline used as an antipyretic