umbo

== English == === Etymology === Borrowed from Latin umbō (“a shield boss”). Doublet of umbone. === Pronunciation === (Received Pronunciation) IPA(key): /ˈʌm.bəʊ/ (General American) IPA(key): /ˈʌm.boʊ/ Rhymes: -ʌmbəʊ === Noun === umbo (plural umbones or umbos or umboes) (historical) The boss of a shield, at or near the middle and usually projecting, sometimes in a sharp spike. (biology) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane. (anatomy) An inward projection of the tympanic membrane of the ear. (zoology) One of the lateral prominences just above the hinge of a bivalve shell. (mycology) A bump or protrusion on the cap of a mushroom or toadstool. ==== Derived terms ==== umbonal umbonic === See also === boss === References === “umbo”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022. “umbo”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. === Anagrams === ombu == Latin == === Etymology === From Proto-Indo-European *h₃émbʰō ~ *h₃m̥bʰ-n-és, from the root *h₃m̥bʰ- (“navel; nave, hub”). Particularly close cognate with Proto-Germanic *ambô (“belly; paunch”). === Pronunciation === (Classical Latin) IPA(key): [ˈʊm.boː] (modern Italianate Ecclesiastical) IPA(key): [ˈum.bo] === Noun === umbō m (genitive umbōnis); third declension boss (of a shield, etc.) elbow (or similar projecting part) ==== Declension ==== Third-declension noun. ==== Related terms ==== umbilicus ==== Descendants ==== → English: umbo (learned) → Italian: umbone (learned)→ English: umbone (learned) ⇒ Translingual: Umbonium === References === === Further reading === “umbo”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press “umbo”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers “umbo”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette. “umbo”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers “umbo”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin == Swahili == === Etymology === From -umba (“to create”) +‎ -o. === Pronunciation === === Noun === umbo class V (plural maumbo class VI) shape, form, structure