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单词 plumula
释义

plumulan.

Brit. /ˈpluːmjᵿlə/, U.S. /ˈplumjələ/
Origin: Apparently a borrowing from Latin. Etymon: Latin plūmula.
Etymology: Apparently a specific use of classical Latin plūmula little feather < plūma plume n. + -ula -ula suffix. Compare plumule n.
Botany.
= plumule n. 1.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > seed > [noun] > parts of > plumule or rudimentary shoot
spirec1374
springa1400
sprout?1548
plume1578
spear1647
germen1651
acrospire1675
sprit1682
mistressa1722
plumula1727
plumule1727
plumelet1783
gemmule1844
stem-bud1877
epicotyl1880
1727 P. Shaw & E. Chambers in tr. H. Boerhaave New Method Chem. ii. 150 (note) We find its cavity fill'd with a young plant in miniature, and can easily distinguish a plumula, or future stem.
1805 Philos. Trans. (Royal Soc.) 95 97 Though no vessels can be traced which lead immediately from the cotyledons to the bud or plumula, it is not difficult to point out a more circuitous passage.
1832 J. Baxter Libr. Agric. & Hort. Knowl. (ed. 2) 37 The plumula begins to grow; and when this has grown to a certain extent within the grain, the further germination is checked by exposing the grain on a kiln.
1899 Bull. Torrey Bot. Club 26 21 Healthy rootlets are protruded, and the freely growing plumula has all the appearances of turgidity and firmness incidental to good nutrition.
1990 Jrnl. Appl. Ecol. 16 192 To determine the percentage germination, seeds were counted and removed when the plumula became visible.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1727
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