Trigonal

Trig"o*nal

(?), a. Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles.
[1913 Webster]


[1913 Webster]

Tri`gone"

(?), n. [F., literally, a trigon.] (Anat.) A smooth triangular area on the inner surface of the bladder, limited by the apertures of the ureters and urethra.
[1913 Webster]

Tri*go"ni*a

(?), n. [NL. See Trigon. So called in allusion to the triangular shape of some species.] (Zol.) A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia.
[1913 Webster]

 

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Thu 13th December 2018