from the GNU version of the Collaborative International Dictionary of English
- n. one of the two K vitamins, (C31H46O2). It is fat-soluble and occurs naturally as the trans isomer. Chemically it is 2-methyl-3-phytyl-1,4,-naphthoquinone.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a form of vitamin K
Sorry, no etymologies found.