triplo-|trɪpləʊ|before a vowel tripl-, combining form repr.Gr. τριπλόος, τριπλοῦς threefold, triple; occurring in a few rare scientific terms. (Cf. tripli-.) triploblastic|-ˈblæstɪk|a.Biol.[Gr. βλαστός germ], having three germinal layers (epiblast, mesoblast, and hypoblast: cf. blastoderm) in the embryo; belonging to the division Triploblastica, a synonym of Cœlomata, including the majority of animals; cf.diploblastics.v. diplo-. triplo-caulescent|-kɔːˈlɛsənt|, -caulous|-ˈkɔːləs|adjs., Bot.[L. caulis stem], having a tertiary system of axes or stem-branches. ‖ triˈplopia, anglicized ˈtriplopy, Path.[Gr. ὤψ eye: cf. diplopia], an affection of the eyes in which objects are seen triple.1888Cassell's Encycl.Dict., *Triploblastic.1890Billings Med.Dict., Triploblastic, having three germ-layers.1900B. D. Jackson Gloss.Bot. Terms, *Triplo-caulescent..when a plant has a third (tertiary) system of axes. *Triplo-caulous..possessing ternary axes (Pax).1860Mayne Expos.Lex., *Triplopia, a term for..disordered vision in which objects are tripled.1903F. W. H. Myers Hum. Personality I. 479 Cases, where ciliary spasm..led to..triplopia.1863Atkinson tr.Ganot's Physics vii. vi. 463 A single eye may also be affected with *triplopy, but in this case the third image is exceedingly weak.
triplo-/ˈtrɪpləʊ/combining form.
ORIGIN: from Greektriploos, triplous threefold, triple: see -o-. Cf. diplo-.