Umbos
Umbo Um"bo, n.; pl. L. {Umbones}, E. {Umbos}. [L.] 1. The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike. [1913 Webster]

2. A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larv[ae] of echinoderms or in the tympanic membrane of the ear. [1913 Webster]

3. (Zo["o]l.) One of the lateral prominence just above the hinge of a bivalve shell. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • umbos — n. bump or elevation on a shield; rounded bump or protuberance; depressed area on the surface of the eardrum (Anatomy); protrusion on either side of the hinge of a bivalve shell (Zoology) …   English contemporary dictionary

  • Otto Umbehr — Umbo (* 18. Januar 1902 in Düsseldorf; † 13. Mai 1980 in Hannover; eigentlich Otto Maximilian Umbehr) war ein deutscher Fotograf und Fotojournalist. Umbo gilt neben László Moholy Nagy als der bedeutendste Fotograf des Bauhauses. Er ist Bauhaus… …   Deutsch Wikipedia

  • Umbo — (* 18. Januar 1902 in Düsseldorf; † 13. Mai 1980 in Hannover; eigentlich Otto Maximilian Umbehr) war ein deutscher Fotograf und Fotojournalist. Umbo gilt neben László Moholy Nagy als der bedeutendste Fotograf des Bauhauses. Er ist Bauhaus Schüler …   Deutsch Wikipedia

  • Subumbonal — Sub um*bo nal, a. (Zo[ o]l.) Beneath or forward of the umbos of a bivalve shell. [1913 Webster] …   The Collaborative International Dictionary of English

  • Umbo — Um bo, n.; pl. L. {Umbones}, E. {Umbos}. [L.] 1. The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike. [1913 Webster] 2. A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or …   The Collaborative International Dictionary of English

  • Umbones — Umbo Um bo, n.; pl. L. {Umbones}, E. {Umbos}. [L.] 1. The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike. [1913 Webster] 2. A boss, or rounded elevation, or a corresponding depression, in a palate,… …   The Collaborative International Dictionary of English

  • umbo — noun (plural umbones or umbos) Etymology: Latin; akin to Latin umbilicus more at navel Date: 1721 1. the boss of a shield 2. a rounded elevation: as a. an inward projection of the tympanic membrane of the ear b. one of the lateral prominences… …   New Collegiate Dictionary

  • Apex (mollusc) — The apex is a word most often used to mean the tip of the spire of the shell of a gastropod. It is the first formed, and therefore the oldest, part of the shell. To be more precise, the apex would usually be where the tip of the embryonic shell… …   Wikipedia

  • Pileus (mycology) — The pileus is the technical name for the cap, or cap like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore bearing surface, the hymenium.[1] The hymenium (hymenophore) may consist of lamellae, tubes, or teeth, on… …   Wikipedia

  • Cupressus macnabiana — foliage Conservation status …   Wikipedia

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