trigonal

[ trig-uh-nl ]

/ ˈtrɪg ə nl /

SEE SYNONYMS FOR trigonal ON THESAURUS.COM

adjective

of, relating to, or shaped like a triangle; having three angles; triangular.

Crystallography. having threefold symmetry.

Origin of trigonal

First recorded in 1560–70; trigon + -al¹

OTHER WORDS FROM trigonal

trig·o·nal·ly, adverbsub·trig·o·nal, adjective

Words nearby trigonal

trigger zone, triglyceride, triglyph, trigo, trigon, trigonal, trigonal trisoctahedron, trigone, trigone of bladder, trigonid, trigonitis

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for trigonal

Parietes ribbed, mottled purplish-red; orifice broad, trigonal, hardly toothed.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin
The horns are trigonal, laterally compressed and knotted on the upper edge.
Natural History of the Mammalia of India and Ceylon|Robert A. Sterndale
The leaves are trigonal; they are very short, and they are laid over each other like scales in four rows.
Botany for Ladies|Jane Loudon
Trigonal trapezohedron (fig. 74), bounded by six trapezoidal faces.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7|Various

The cartilage placed in a trigonal pit with a small external ligament.
A Conchological Manual|George Brettingham Sowerby

British Dictionary definitions for trigonal

trigonal

/ (ˈtrɪɡənəl) /

adjective

another word for triangular (def. 1)

Also: rhombohedral relating or belonging to the crystal system characterized by three equal axes that are equally inclined and not perpendicular to each other

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for trigonal

trigonal

[ trī-gō′nəl ]

Relating to a crystal having three axes of equal length intersecting at oblique angles. This crystal system is considered a subset of the hexagonal system. The mineral quartz has trigonal crystals. Also called rhombohedral See illustration at crystal.

单词	trigonal
释义	trigonal [ trig-uh-nl ] / ˈtrɪg ə nl / SEE SYNONYMS FOR trigonal ON THESAURUS.COM adjective of, relating to, or shaped like a triangle; having three angles; triangular. Crystallography. having threefold symmetry. Origin of trigonal First recorded in 1560–70; trigon + -al¹ OTHER WORDS FROM trigonal trig·o·nal·ly, adverbsub·trig·o·nal, adjective Words nearby trigonal trigger zone, triglyceride, triglyph, trigo, trigon, trigonal, trigonal trisoctahedron, trigone, trigone of bladder, trigonid, trigonitis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for trigonal Parietes ribbed, mottled purplish-red; orifice broad, trigonal, hardly toothed. A Monograph on the Sub-class Cirripedia (Volume 2 of 2)\|Charles Darwin The horns are trigonal, laterally compressed and knotted on the upper edge. Natural History of the Mammalia of India and Ceylon\|Robert A. Sterndale The leaves are trigonal; they are very short, and they are laid over each other like scales in four rows. Botany for Ladies\|Jane Loudon Trigonal trapezohedron (fig. 74), bounded by six trapezoidal faces. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7\|Various The cartilage placed in a trigonal pit with a small external ligament. A Conchological Manual\|George Brettingham Sowerby British Dictionary definitions for trigonal trigonal / (ˈtrɪɡənəl) / adjective another word for triangular (def. 1) Also: rhombohedral relating or belonging to the crystal system characterized by three equal axes that are equally inclined and not perpendicular to each other Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to trigonal trilateral, treble, triple, ternary, third, trinitarian, triangular, pyramidal, ternate, trichotomic, trigonous, trinal, trinary, tripartite, cuneate, deltoid, deltoidal, hastate, pyriform Scientific definitions for trigonal trigonal [ trī-gō′nəl ] Relating to a crystal having three axes of equal length intersecting at oblique angles. This crystal system is considered a subset of the hexagonal system. The mineral quartz has trigonal crystals. Also called rhombohedral See illustration at crystal. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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trigonal

adjective

Origin of trigonal

OTHER WORDS FROM trigonal

Words nearby trigonal

Example sentences from the Web for trigonal

British Dictionary definitions for trigonal

adjective

Words related to trigonal

Scientific definitions for trigonal