Substantive changes in the Latin anatomical nomenclature: Sometimes less is more.

Substantivation, the use of an adjective or participle as a noun, is commonly used informally to shorten Latin anatomical terms. Dozens of substantives also appear in the international standard anatomical terminology. Most of these are venerable and familiar as nouns in Latin anatomical terms. Examples of Latin nouns derived directly or indirectly from Greek and Latin adjectives and participles are presented here. Although neologisms are said to enrich languages, careful consideration is required before adding to a technical vocabulary. Terms consisting of a substantive or displaying a substantive as the head noun may be vague to learners and nonspecialists.