[proh-vahy-tuh-min; British also proh-vit-uh-min]
Origin of provitamin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a substance, such as carotene, that is converted into a vitamin in animal tissues
- A vitamin precursor that is converted to its active form through normal metabolic processes.