Any of a group of lipids, including the prostaglandins, prostacyclins, and thromboxanes, which have molecular structures based on that of prostanoic acid.
Origin
1970s. From prostan- + -oid.
Definition of prostanoid in US English:
prostanoid
nounˈprɒstəˌnɔɪd
Biochemistry
Any of a group of lipids, including the prostaglandins, prostacyclins, and thromboxanes, which have molecular structures based on that of prostanoic acid.