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单词 mucronation
释义

mucronationn.

Brit. /ˌmjuːkrəˈneɪʃn/, U.S. /ˌmjukrəˈneɪʃ(ə)n/
Origin: Formed within English, by derivation. Etymons: mucronate adj., -ion suffix1.
Etymology: < mucronate adj. + -ion suffix1; compare -ation suffix.
Biology.
The state or quality of being mucronate. Also: a mucro.
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the world > life > biology > physical aspects or shapes > projection or protuberance > [noun] > pointed projection
tongue1398
jag1578
mucro1646
spur1681
rostruma1728
spicula1753
spikelet1851
lingula1856
mucronation1862
cusp1879
mucronule1890
1862 Philos. Trans. 1861 (Royal Soc.) 151 396 The mucronation consists in a thickened point which projects beyond the plate.
1901 Ref. Handbk. Med. Sci. (ed. 2) III. 154/2 The apex is often very slightly retuse, and the midrib produced into a slight apiculation or mucronation.
1972 Systematic Zool. 21 102/1 Large scales [of the lizard] tend to have a greater surface area due to heavy keeling and mucronation.
2000 Proc. Biol. Soc. Washington 113 443 Hyalella (H.) muerta..is blind, lacks dorsal mucronations and antenna 1 is longer than antenna 2.
This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).
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n.1862
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