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单词 nuciform
释义

nuciformadj.

Brit. /ˈnjuːsᵻfɔːm/, U.S. /ˈn(j)usəˌfɔrm/
Origin: Formed within English, by compounding. Etymons: nuci- comb. form, -form comb. form2.
Etymology: < nuci- comb. form + -form comb. form2. Compare scientific Latin nuciformis (1795 or earlier as specific name in form nuciforme), French nuciforme (1868 in Littré).
Chiefly Botany and Soil Science.
Having the shape or form of a nut; spec. (of soil texture) characterized by rounded aggregates of particles resembling nuts.In quot. 1911, the ‘nuciform sac’ is a fictional anatomical structure.
ΚΠ
1843 Trans. Amer. Philos. Soc. 8 260 The drupe of this species appears to be five or ten-celled, with ten nuciform carpels.
1857 A. Gray First Lessons Bot. 223 Nuciform, nut-shaped or nut-like.
1911 G. B. Shaw Doctor's Dilemma i. 15 Your nuciform sac is full of decaying matter—undigested food and waste products.
1932 G. W. Robinson Soils vii. 164 The shrinkage of soils on drying produces certain characteristic structures such as prismatic, columnar, and nuciform.
1958 Ann. Missouri Bot. Garden 45 32 Legumes oblong-rotund to inequilaterally oblong, up to 1.8 cm. long, 1.8 cm. wide, nuciform, minutely apiculate, the surface minutely crustose, the pericarp wall about 3 mm. thick.
1996 Russian Jrnl. Ecol. 27 178/2 In fact, loose nuciform structure, cloddy structure, and blocky-cloddy structure of aggregates predominated..in the impact zone.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.1843
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