What does "secosteroid" mean?

Any of the subclass of many terpenoid compounds of the tetracyclic steroid class that are structural relatives bearing a cleavage of one of the four rings of that parent class. The prototypical secosteroid is cholecalciferol, vitamin D3.

Secosteroid

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
Any of the subclass of many terpenoid compounds of the tetracyclic steroid class that are structural relatives bearing a cleavage of one of the four rings of that parent class. The prototypical secosteroid is cholecalciferol, vitamin D3.

Etymology

From Latin seco (“to cut”).

Related phrases

vitamin d

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