Term: trinomial, trinomen (pl trinomina)
Literally meaning: “state of three names”
Origin: Anc Greek
τρείς-/tris (= the number three)
+ὄνομα/ onoma (=name) > νέμω/nemo (=distribute)
Coined/History
(?)
Definition
Trionomial is the name consisting of three terms (generic name, specific name, subspecific name) always in italics, reffering to a subspecies (ssp). In botany there is an trinomial name with the addition of a connecting term to indicate the rank of name.
Eg: (zoology) Equus ferus caballus (the name of the horse that is one of two extannt subspecies of Equus ferus, or the wild horse)
(botany): Rosmarinus eriocalix subsp. Tomentosus (a rosemary subspecies) or Crataegus azarolus var pontica (Mediterranean hawthorn)
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