D defs.my
Entry 1 sense Webster, 1913

vitamin K1

· IPA
01 n. one of the two K vitamins, (C31H46O2). It is fat-soluble and occurs naturally as the trans isomer.
  1. 1.
    one of the two K vitamins, (C31H46O2). It is fat-soluble and occurs naturally as the trans isomer.