umbonal
Americanadjective
-
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.
Scuta highly convex, broadly oval, apex broad rounded; basal margin narrow, much curved; no internal, umbonal teeth; basal internal rim strong, running up part of the occludent margin.
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
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
Valves 5; carina with a truncated and crested base; scuta with strong internal umbonal teeth; terga with the basal point truncated, almost parallel to the occludent margin.
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
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