n.
Pronunciation: s ī - ' täs-t ə - ˌ ro ̇ l, s ə -, - ˌ r ō l
Function: noun
Etymology: Greek sitos grain + English sterol
Date: 1898
: any of several sterols that are widespread especially in plant products (as wheat germ or soybean oil) and are used as starting materials for the synthesis of steroid hormones