Trigonid
Trigonid Tri"go*nid [Webster 1913 Suppl.] Trigonal Trig"o*nal, a. Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • trigonid — ˈtrīgəˌnid noun ( s) Etymology: trigon (I) + id : the part of a lower molar corresponding to the trigon of an upper molar * * * trigonid Comp. Anat. (ˈtrɪgənɪd) [f. trigon + …   Useful english dictionary

  • trigonid — noun The shearing end of a tribosphenic molar …   Wiktionary

  • trigonid — The first three dominant cusps, taken collectively, of a lower molar tooth. SEE ALSO: trigone. * * * tri·go·nid trī gə .nid n the first three cusps of a lower molar * * * tri·gon·id (tri gonґid) the first three cusps of a lower molar tooth. See… …   Medical dictionary

  • trigonid — tri·go·nid …   English syllables

  • Trigonal — Trigonid Tri go*nid [Webster 1913 Suppl.] Trigonal Trig o*nal, a. Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles. [1913 Webster] …   The Collaborative International Dictionary of English

  • Dermotherium — Temporal range: Late Eocene – Late Oligocene Scientific classification Kingdom: Animalia Phylum: Chordata Class …   Wikipedia

  • Molar (tooth) — Molars A lower wisdom tooth after extraction …   Wikipedia

  • Teinolophos — Taxobox name = Teinolophos fossil range = Early Cretaceous regnum = Animalia phylum = Chordata classis = Mammalia ordo = Monotremata familia= Steropodontidae genus = Teinolophos species = T. trusleri binomial = Teinolophos trusleri binomial… …   Wikipedia

  • Evolution: Die Entwicklung der Säugetiere —   Das Känozoikum, das Zeitalter, das die letzten 65 Millionen Jahre der Erdgeschichte umfasst, wird auch als das Zeitalter derjenigen Tiere bezeichnet, die nach dem Aussterben der großen Reptilien zur beherrschenden Wirbeltiergruppe auf der Erde… …   Universal-Lexikon

  • Trituberculy — Tri tu*ber cu*ly, n. [Pref. tri + L. tuberculum tubercle.] (Zo[ o]l.) A theory of the development of mammalian molar teeth. The primitive stage is that of simple cones, as in reptiles. The simple cone then developed a smaller cone in front and… …   The Collaborative International Dictionary of English

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