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单词 epigeal
释义

epigealadj.

/ɛpɪˈdʒiːəl/
Etymology: < Greek ἐπίγειος: see epigee n. + -al suffix1.
(a) = epigeous adj. (In modern dictionaries.) (b) Of cotyledons: borne above ground after germination.
ΚΠ
1861 R. Bentley Man. Bot. ii. ii. 773 They burst through the coats, and rise out of the ground in the form of green leaves..in which case they are epigeal.
1884 A. Henfrey Elem. Bot. (ed. 4) 652 The seed-leaves..are pushed up above ground, and become epigeal.
1909 W. Bateson Mendel's Princ. Heredity (new ed.) 31 In Phaseolus hypo-geal cotyledons are dominant to epi-geal.
1964 A. J. Brook Living Plant i. 13 Because they are raised above the soil on germination, these cotyledons..are termed epigeal.

Draft additions June 2017

Designating a termite nest or mound, or a part of such a structure, that protrudes from the ground.
ΚΠ
1971 K. E. Lee & T. G. Wood Termites & Soils ii. 29 In the case of species, such as T. hastilis and D. rubriceps, which may have composite subterranean and epigeal nests, excavated soil is probably incorporated into the mound structure.
1998 Jrnl. Trop. Ecol. 14 513 An epigeal turret ventilates the fungus garden at the centre of the nest.
2012 F. R. Wylie & M. R. Speight Insect Pests in Trop. Forestry (ed. 2) ii. 27 (caption) Termites constructing free-standing epigeal mounds.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).
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