1. an algebraic expression consisting of three terms
Usage: mathematics
2. a taxonomic name consisting of three parts, typically genus, species, and subspecies
Usage: biology

1. consisting of three terms or names

Examples

• The expression x² + 3x + 2 is a trinomial.
• Students learned to factor trinomials in algebra class.
• The scientist used a trinomial name to classify the new subspecies.
• Homo sapiens sapiens is a trinomial designation for modern humans.
• The trinomial system helps biologists organize species variations.
• She solved the trinomial equation by grouping terms.
• The trinomial nomenclature provides precise identification of organisms.