noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any biologically inactive compound that may be converted into a vitamin within an animal organism
2. 2
   vitamin precursor; a substance that is converted into a vitamin in animal tissues wordnet

Synonyms

All synonyms

carotenecarotinprevitamin

Etymology

From pro- (“forward, facing, favouring, toward”) + vitamin.

Related phrases

provitamin Aprovitamin D

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.