23-letter words containing l, i, g, a, t, o
- topological equivalence — the property of two topological spaces such that there is a homeomorphism from one to the other.
- transplantation antigen — a histocompatibility antigen identified by its effect on the rejection of transplanted cells or tissues.
- trigonal trisoctahedron — a trisoctahedron whose faces are triangles.
- triple expansion engine — (formerly) a steam engine in which the steam is expanded in three stages in cylinders of increasing diameter to accommodate the increasing volume of the steam
- unconditional discharge — the release of a defendant without having to spend time on parole or probation
- voyageurs national park — a national park in N Minnesota. 343 sq. mi. (888 sq. km).
- western lowland gorilla — the largest of the anthropoid apes, Gorilla gorilla, terrestrial and vegetarian, of western equatorial Africa and the Kivu highlands, comprising the subspecies G. g. gorilla (western lowland gorilla) G. g. graueri (eastern lowland gorilla) and G. g. beringei (mountain gorilla) now rare.