megalodonn.

Brit.

/ˈmɛɡ(ə)lədɒn/,

/ˈmɛɡl̩ədɒn/, U.S.

/ˈmɛɡələˌdɑn/

Forms: also with capital initial.

Origin: A borrowing from Latin. Etymons: Latin Megalodon, megalodon.

Etymology: Partly (in sense 1) < scientific Latin Megalodon, genus name ( J. Sowerby & J. D. C. Sowerby Mineral Conchol. Great Brit. (1829) VI. 131), alluding to the teeth of the shell hinge, and partly (in sense 2) < scientific Latin megalodon, the specific name of Carcharias (later Carcharodon) megalodon (L. Agassiz 1837 or earlier, apparently first printed in a caption to a plate in his Recherches sur les poissons fossiles (1833–43 ; see Plates III. tab. 29)); both < ancient Greek μεγαλο- megalo- comb. form + < ὀδόντ- , ὀδούς tooth (see -odon comb. form).

Palaeontology.

1. Usually in form Megalodon. An extinct marine bivalve mollusc of the genus Megalodon, whose fossilized shells are found in rocks of the Devonian period to the Jurassic; (also) the genus itself.

ΚΠ

1829 J. Sowerby & J. D. C. Sowerby Mineral Conchol. Great Brit. VI. 131 Megalodon... A genus nearly related to Mytilus, but distinguished by the large teeth of the hinge and weight of the shell.

1869 N. Amer. Rev. Oct. 507 Under the gypsum..is a bed of freestone or grit, in which are found remains of marine animals, some of them extinct species. One of the laborers gave me a megalodon from this stratum.

1960 Jrnl. Paleontol. 34 101/1 It was eventually decided that the new species should be referred to the genus Megalodon.

2004 E. Flügel Microfacies Carbonate Rocks xvi. 809/2 The limestone always contains a large amount of organic debris... Thick-shelled bivalves (Megalodon, Conchodon) are conspicuous.

2. In full megalodon shark. An enormous extinct shark, Carcharocles megalodon, of the early Miocene to the late Pliocene epoch. Also figurative: something large, ferocious, voracious, etc.The classification of the species has proved difficult, and it has been placed in several different genera.

ΚΠ

1876 Proc. Acad. Nat. Sci. Philadelphia 86 A tooth exhibited of the megalodon shark is 5½ inches long and 4½ inches broad at the base.

1927 Pop. Sci. Monthly Feb. 49/1 Based on the size of these teeth, it is estimated the Megalodon must have been 120 feet long, or larger than any modern whale.

2001 D. B. Mason Last Summer at Barebones (2002) 19 There was no use telling myself I hadn't meant it... I knew I'd meant it. The megalodon of my anger was alive and well.

2010 S. Kean Disappearing Spoon (2011) xv. 261 Paleontologists determined (just from the teeth!) that this Jaws, dubbed the megalodon, grew to approximately fifty feet, weighed approximately fifty tons, and could swim approximately fifty miles per hour.

This is a new entry (OED Third Edition, March 2020; most recently modified version published online March 2022).

单词	megalodon
释义	megalodonn. Brit. /ˈmɛɡ(ə)lədɒn/, /ˈmɛɡl̩ədɒn/, U.S. /ˈmɛɡələˌdɑn/ Forms: also with capital initial. Origin: A borrowing from Latin. Etymons: Latin Megalodon, megalodon. Etymology: Partly (in sense 1) < scientific Latin Megalodon, genus name ( J. Sowerby & J. D. C. Sowerby Mineral Conchol. Great Brit. (1829) VI. 131), alluding to the teeth of the shell hinge, and partly (in sense 2) < scientific Latin megalodon, the specific name of Carcharias (later Carcharodon) megalodon (L. Agassiz 1837 or earlier, apparently first printed in a caption to a plate in his Recherches sur les poissons fossiles (1833–43 ; see Plates III. tab. 29)); both < ancient Greek μεγαλο- megalo- comb. form + < ὀδόντ- , ὀδούς tooth (see -odon comb. form). Palaeontology. 1. Usually in form Megalodon. An extinct marine bivalve mollusc of the genus Megalodon, whose fossilized shells are found in rocks of the Devonian period to the Jurassic; (also) the genus itself. ΚΠ 1829 J. Sowerby & J. D. C. Sowerby Mineral Conchol. Great Brit. VI. 131 Megalodon... A genus nearly related to Mytilus, but distinguished by the large teeth of the hinge and weight of the shell. 1869 N. Amer. Rev. Oct. 507 Under the gypsum..is a bed of freestone or grit, in which are found remains of marine animals, some of them extinct species. One of the laborers gave me a megalodon from this stratum. 1960 Jrnl. Paleontol. 34 101/1 It was eventually decided that the new species should be referred to the genus Megalodon. 2004 E. Flügel Microfacies Carbonate Rocks xvi. 809/2 The limestone always contains a large amount of organic debris... Thick-shelled bivalves (Megalodon, Conchodon) are conspicuous. 2. In full megalodon shark. An enormous extinct shark, Carcharocles megalodon, of the early Miocene to the late Pliocene epoch. Also figurative: something large, ferocious, voracious, etc.The classification of the species has proved difficult, and it has been placed in several different genera. ΚΠ 1876 Proc. Acad. Nat. Sci. Philadelphia 86 A tooth exhibited of the megalodon shark is 5½ inches long and 4½ inches broad at the base. 1927 Pop. Sci. Monthly Feb. 49/1 Based on the size of these teeth, it is estimated the Megalodon must have been 120 feet long, or larger than any modern whale. 2001 D. B. Mason Last Summer at Barebones (2002) 19 There was no use telling myself I hadn't meant it... I knew I'd meant it. The megalodon of my anger was alive and well. 2010 S. Kean Disappearing Spoon (2011) xv. 261 Paleontologists determined (just from the teeth!) that this Jaws, dubbed the megalodon, grew to approximately fifty feet, weighed approximately fifty tons, and could swim approximately fifty miles per hour. This is a new entry (OED Third Edition, March 2020; most recently modified version published online March 2022). < n.1829
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