Conceptual Domain

In biology, the beginning of pregnancy, marked by fertilization of an egg by a sperm.

A unique identifier (code) assigned for each concept that belongs to a particular controlled terminology.

The standing of a concept in relation to currently accepted classifications and concepts. In NCI Thesaurus and NCI Metathesaurus, concept status subtypes…

The presiding officer who examines abstract or generic ideas generalized from particular instances.

Any of the relationships between concepts. The vertical, hierarchical relationships may be referred to as Parent, Child, Broader, Narrower, isa, inverse-isa, Super…

The tracking of concept evolution over the lifetime of a vocabulary, includes concept creation, modification, merges, splits, and retirements.