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单词 peritropal
释义

peritropaladj.

Origin: A borrowing from French, combined with an English element. Etymons: French péritrope , -al suffix1.
Etymology: < French péritrope (L. C. M. Richard Démonstr. bot. (1808) 110; < peri- peri- prefix + ancient Greek -τροπος : see -trope comb. form) + -al suffix1. Compare scientific Latin peritropus , adjective (1813 or earlier; also as noun in peritropum (1819 or earlier)). Compare also (especially with sense 2) Hellenistic Greek περίτροπος turned round. Compare heterotropal adj., etc. N.E.D. (1905) gives the pronunciation as (pĕri·trŏpăl) /pəˈrɪtrəpəl/.
Obsolete.
1. Botany. = peritropous adj. rare.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > seed > [adjective] > of parts > relating to embryo or radicle
rostellate1800
orthotropous1819
peritropal1819
radicular1819
rostelliform1819
homotropous1829
heterotropous1830
heterotropal1832
axile1839
amphitropous1841
homotropal1844
rostellara1845
amphitropal1847
peritropous1849
polyembryonate1864
polyembryonic1864
proembryonic1875
1819 J. Lindley tr. L.-C. Richard Observ. Struct. Fruits & Seeds 22 If it [sc. the seed] be attached to the axis, or to an axile trophosperm, by an hilum equi-distant from the two ends or occupying the whole length of the inner edge, it is called peritropal.
1819 J. Lindley tr. L.-C. Richard Observ. Struct. Fruits & Seeds 86 Peritropal..directed from the axis towards the sides of the pericarp.
1832 J. Lindley Introd. Bot. ii. 378 Peritropal, directed from the axis to the horizon,..only applied to the embryo of the seed.
2. Rotating. rare. N.E.D. (1905) notes ‘erroneously explained by Worcester’.Apparently only attested in dictionaries or glossaries.
ΚΠ
1846 J. E. Worcester Universal Dict. Eng. Lang. Peritropal, turning around; rotary. Hooker.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online September 2021).
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adj.1819
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