materia medica noun phr. pl. [mǝ'tɪǝrɪǝ 'mɛdɪkǝ] M17.[mod. Latin translating Greek hulē iatrikē healing material.]The remedial substances used in the practice of medicine; (treated as
sing.) the branch of medicine that deals with their origins and properties.
[TahlilGaran] English Dictionary ▲