umbonal
Americanadjective
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having the shape or appearance of an umbo; bosslike.
an umbonal structure.
-
of, relating to, or near the umbo.
the umbonal region.
Other Word Forms
Etymology
Origin of umbonal
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Valves 5; carina with the basal end produced into a small imbedded disc; scuta convex, without internal umbonal teeth; terga almost rudimentary, scarcely broader than the carina.
From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin
Valves 3; scuta pointed, oval, placed almost transversely to the peduncle; internal umbonal teeth strong: terga absent: carina with the basal end produced into a large, oblong, imbedded disc.
From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin
In the Trimerellidae, for example, some of the muscles are attached to a massive or vaulted platform situated in the medio-longitudinal region of the posterior half or umbonal portion of both valves.
From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various
Valves smooth, thin, brittle; scuta with internal umbonal teeth on both sides.
From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin
Valves 5; carina with a truncated base; scuta oval, with the basal margin very short, furnished with small internal umbonal teeth; terga, with the basal point very obliquely truncated.
From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
