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单词 winter bud
释义

winter budn.

Brit. /ˈwɪntə bʌd/, U.S. /ˈwɪn(t)ər ˌbəd/
Origin: Formed within English, by compounding. Etymons: winter n.1, bud n.1
Etymology: < winter n.1 + bud n.1
1. Botany.
a. A dormant plant bud enclosed in a protective covering which enables it to survive during the winter. Cf. hibernaculum n. 3.
ΚΠ
1677 J. Worlidge Systema Horti-culturæ iii. i. 187 I have often found that by covering a winter bud to preserve it from Frost the Snails have greedily devour'd it.
1781 F. J. Brand tr. Select Diss. from Amœnitates Academicæ I. ix. 393 The Acarius telarius spins over the winter buds [L. hybernaculis] of the most scarce plants and destroys them.
1796 P. Wakefield Introd. Bot. i. 4 In warm countries, few plants are furnished with winter buds.
1822 Trans. Hort. Soc. London (ed. 3) 2 186 Most of the other species of winter buds are equally protected against evaporation from within, and moisture from without, by dense shelly coverings.
1887 H. M. Ward tr. J. von Sachs Lect. Physiol. Plants iv. 43 When a winter-bud is about to be formed at the end of a leaf-shoot,..the development of foliage-leaves suddenly ceases.
1996 Chiltern Seeds Catal. 1 Not often seen is this rare and beautiful, large, slender, conical, dark green tree with large and conspicuous..orange-brown winter buds.
b. A detachable bud-like organ, typically produced by certain aquatic plants, which functions as a vegetative propagule. Cf. turion n. Additions 2.
ΚΠ
1869 Trans. Royal Soc. Edinb. 25 640 (heading) Rudiment of the Inflorescence in Winter-Bud.
1923 Illustr. London News 24 Feb. 304/2 The floating stem dies, but the detached ‘winter buds’ live on, resting on the mud.
2011 T. A. Block & A. F. Rhoads Aquatic Plants Pennsylvania viii. 256 Most bladderwort species are classified as perennials because of their production of compact winter buds known as turions.
2. Zoology. In freshwater bryozoans and sponges: a statoblast which is dormant through the winter; = hibernaculum n. 4a.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > statoblast
statoblast1855
winter bud1856
1856 G. J. Allman Monogr. Fresh-water Polyzoa 71 This memoir..describes and figures with much minuteness the development of the bud in Paludicella, and mentions the occurrence of a peculiar winter bud in this Polyzoon.
1899 G. C. Whipple Microsc. Drinking Water xxiii. 249 The fresh-water sponges contain seed-like bodies known under the various names of gemmules, ovaria, statoblasts, statospheres, winter-buds, etc.
1932 P. B. Mann & G. T. Hastings Out of Doors xi. 179 These freshwater sponges differ from the marine forms in producing winter buds, or statoblasts.
1965 E. A. Ellis in E. A. Ellis Broads viii. 161 One species (Paludicella articulata) is devoid of statoblasts, but produces winter buds called hibernacula.
2012 S. C. Hand in Adv. in Compar. & Envir. Physiol. 8 i. 19 Functionally similar structures termed hibernacula (winter buds) have been described in the Gymnolaemata.
This entry has been updated (OED Third Edition, September 2017; most recently modified version published online December 2021).
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