Dictionary.info
BROWSE DICTIONARY
BROWSE DICTIONARY
IELTS Words
TOEFL Words
GRE Words
SAT Words
GMAT Words
English Learning
Learning
IELTS Lessons
Exam English ✓
Graduate tests
Test English Info
Oxford Collocation Dictionary
Wordnet Online
IELTS Lessons
Google Dictionary
DEFINITIONS
SYNONYMS
Search
top definitions
provitamin D2
n.
A substance, such as ergosterol, that can give rise to vitamin D
2
.