WordReference Random House Unabridged Dictionary of American English © 2025
phthi•o•col
(thī′ə kôl′, -kol′),USA pronunciation n. [Biochem.]
- Biochemistrya yellow crystalline substance, C11H8O3, produced by the human tubercle bacillus, Mycobacterium tuberculosis, having antibiotic and blood-clotting properties.
- phthi(sis) + -o- + intrusive -c- + -ol1 1930–35