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How to use umbo in a sentence

Looking for sentences and phrases with the word umbo? Here are some examples.

Sentence Examples
The spines in both rows increase in size away from the umbo and there are a few rare scattered additional spines on the ventral corpus.
Argonauta attaches the egg-mass to the umbo of the shell near the dorsal arms, not in the mantle cavity or posterior parts of the shell.
The oldest part of the shell, the umbo, can be recognized as a large hump on the anterior end of the dorsal side of each shell.
Later, when the larva reaches 115 µm, the umbo moves to the side, becoming offcentred and protuberant.
The umbo forms at the point where the two valves meet and becomes protuberant early in the larva's development.
The larva remains symmetrically shaped until about 240 µm, at which size the umbo extends above the hinge line and becomes more protuberant.
The motion of the membrane is transferred to the handle of the malleus, the tip of which is attached at the umbo.
When the larvae reach this size, the umbo looks like a round protuberance hiding the straight hinge line.
Larvae larger than 210 µm have a more protuberant umbo, and their sides form obtuse angles with the shoulders.
When the tympanic membrane absorbs sound waves, its central portion, the umbo, vibrates as a stiff cone, bending inward and outward.
The shape of the umbo can also depend on the position of the larva when it is being observed.
From about 140 µm, the umbo is projected above the hinge and becomes angular.
The umbo then develops quickly and always remains in the centre of the dorsal part.
In mussels, the umbo is indistinct, while the rock borer's is angular in shape.
In the earliest stages, the umbo is below the hinge, and the larva is pale yellow in colour.
The umbo of the oyster larvae moves off-centre during growth, whereas the umbo of the shipworm larva always remains centred.
The oldest part of a clam's shell is near the hinge, which is called the umbo.
At the centre was the umbo, a sort of iron boss to protect the hand.
The mussel's umbo is more protuberant, and the outline is thicker.
Intraoperatively, the tick was alive, its abdomen was distended, and its mouthpart was embedded in the tympanic membrane near the umbo.
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Examples from Classical Literature
The cuticle is smoky olive to fuliginous, darker when young, becoming paler as the pileus expands, but always darker on the umbo.
The position of the umbo on the apophysis is the basis of Koehne's subdivision of the section Haploxylon.
It is by the position of the umbo in the grave that this fact has been exactly ascertained.
The paracentesis knife is inserted boldly through the membrane a little behind and above the umbo.
They are sometimes bell-shaped and then flattened, often with a mound or umbo.
If the Pentamerus oblongus were still there, the tip, or umbo, of the fossilized shell would protrude from the rock.
The centre was formed of metal, and was called a boss or umbo.
The summit or apex of the valve is called the umbo, or beak.
Umbonata, having an umbo or conical projection like the boss of a shield.
The umbo of the terga, I may add, is in the same place, as in Lepas.
The heel or umbo is either angular and prominent, or rounded.
Ventral valve lateral profile anterior to the umbo gently convex with maximum height at the umbonal region.
The rounded end near the umbo is the anterior and is the thickest part of the shell while the posterior end is the thinner area.
As they converge at the umbo of each Pectunculus shell, the hatching is redoubled to emphasize the somewhat darker nub where the valves are joined.
Bivalve size was measured by the perpendicular axes of height, from umbo to distal tip, and length, the longest axis from anterior to posterior ends.
The police acted after the protesters pelted them with stones in the town of Kom Umbo, the source said.
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