ˈthīəˌkȯl, -kōl noun
( -s )
Etymology: probably from phthis is + connective -oc- + -ol
: a yellow crystalline quinone C 11 H 8 O 3 with vitamin K activity that is isolated from the human tubercle bacillus and also made synthetically; 2-hydroxy-3-methyl-1,4-naphthoquinone