Made up of three things; treble, triadic, triple, triplex. / Arranged in groups of three. / (arithmetic) To the base three. / (arithmetic) Having three variables.

A group of three things; a trio, threesome or tierce. / (obsolete) The Holy Trinity.

plural of ternary

Any code whose elements may take one of three values

(chemistry) Any of several forms in which three different molecules are tightly bound together

A system of mathematical logic in which there are three truth values.

(computing) Any computer that uses ternary logic instead of binary

(taxonomy, zoology) A scientific name at the rank of subspecies: an expansion of a binomial name (a genus and a species) combined with the name of the subspecies; for example Homo sapiens sapiens.

An alloy containing three metals or other elements

(chemistry) Any compound containing atoms of three different elements