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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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How to use trigonal in a sentence

Orifice either large and rounded-trigonal, or small and oval, either entire or less frequently toothed.
A MONOGRAPH ON THE SUB-CLASS CIRRIPEDIA (VOLUME 2 OF 2)CHARLES DARWIN
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 CEYLONROBERT A. STERNDALE
When the whorls are angulated, a trigonal aperture is the result, as in many species of Trochus.
A CONCHOLOGICAL MANUALGEORGE BRETTINGHAM SOWERBY
Mactracea (plates, fig. 77 to 88), the cartilage placed in a trigonal pit, with a small external ligament.
A CONCHOLOGICAL MANUALGEORGE BRETTINGHAM SOWERBY
The cartilage placed in a trigonal pit with a small external ligament.
A CONCHOLOGICAL MANUALGEORGE BRETTINGHAM SOWERBY
Wings trigonal, forming a nearly horizontal angle with the body when the insect is at rest.
ZOOLOGICAL ILLUSTRATIONS, VOLUME IIWILLIAM SWAINSON
The leaves are trigonal; they are very short, and they are laid over each other like scales in four rows.
BOTANY FOR LADIESJANE LOUDON
Trigonal trapezohedron (fig. 74), bounded by six trapezoidal faces.
ENCYCLOPAEDIA BRITANNICA, 11TH EDITION, VOLUME 7, SLICE 7VARIOUS
All other forms, in which the faces are neither parallel nor perpendicular to the triad axis, are trigonal pyramids.
ENCYCLOPAEDIA BRITANNICA, 11TH EDITION, VOLUME 7, SLICE 7VARIOUS

WORDS RELATED TO TRIGONAL

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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