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单词 pedati-
释义

pedati-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.
Origin: A borrowing from Latin. Etymons: Latin pedati-, pedātus.
Etymology: < post-classical Latin pedati-, combining form (see examples below) of classical Latin pedātus pedate adj.; compare -i- connective.Attested from the late 18th cent. in a small number of formations exemplified below, many of which are adaptations of Latin compound adjectives. The position of the stress in compounds formed on pedati- varies in accordance with the general stress patterns of English.
Botany.
Forming adjectives (mostly epithets of leaves, modelled on botanical Latin) with the sense ‘in a pedate manner’.
pedatifid adj.
Brit. /pᵻˈdatᵻfɪd/
,
/pᵻˈdeɪtᵻfɪd/
,
U.S. /pəˈdædəˌfɪd/
,
/pəˈdeɪdəˌfɪd/
[after post-classical Latin pedatifidus (see quot. 1793)] pedately divided at least halfway to the base.
ΚΠ
1793 T. Martyn Lang. Bot. sig. N8v Pedatifidum folium, a pedatifid leaf..the parts of the leaf not being separate; but connected, as in the feet of water fowl.
1851 S. F. Baird tr. J. G. Heck Iconogr. Encycl. II. Bot. 18 A pedate, or pedatifid leaf, is one in which there are three primary divisions with two lateral, somewhat like the foot and toes of a bird.
1987 New Phytologist 106 152 Group VI, another blue-flowered group of stemless rhizomatous violets.., is characterized by deeply divided, palmatifid or pedatifid leaves.
pedatiform adj.
Brit. /pᵻˈdatᵻfɔːm/
,
/pᵻˈdeɪtᵻfɔːm/
,
U.S. /pəˈdædəˌfɔrm/
,
/pəˈdeɪdəˌfɔrm/
rare having a pedate shape or arrangement.
ΚΠ
1866 J. Lindley & T. Moore Treasury Bot. II. 855/2 Pedatiform, having a pedate form.
1956 R. W. Brown Composition Sci. Words 240 Crowfoot, name applied to many unrelated plants having pedatiform leaves simulating crows' feet.
pedatilobate adj. [after post-classical Latin pedatilobatus (A. P. de Candolle Théorie Elémentaire de la Bot. (1813) 338)] Obsolete rare pedately lobed.
ΚΠ
1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Pedatilobatus, applied by de Candolle to leaves with pedate nervures which have their lobes incised to a depth not determinable: pedatilobate.
pedatilobed adj. Obsolete rare = pedatilobate adj.
ΚΠ
1866 J. Lindley & T. Moore Treasury Bot. II. 855/2 Pedatilobed, or pedatilobate, when a palmate leaf has the supplementary lobes at the base.
pedatinerved adj. Obsolete rare having pedate venation.
ΚΠ
1866 J. Lindley & T. Moore Treasury Bot. II. 855/2 Pedatinerved, when the ribs are arranged in a pedate manner.
pedatipartite adj.
Brit. /pᵻˌdeɪtᵻˈpɑːtʌɪt/
,
/pᵻˌdatᵻˈpɑːtʌɪt/
,
U.S. /pəˌdædəˈpɑrˌtaɪt/
,
/pəˌdeɪdəˈpɑrˌtaɪt/
[after post-classical Latin pedatipartitus (A. P. de Candolle Théorie Elémentaire de la Bot. (1813) 338)] rare pedately divided more than halfway or almost to the base.
ΚΠ
1857 A. Henfrey Elem. Course Bot. §93 The general prefix pedati- may be used in the words pedatifid, pedatisect, or pedatipartite.
1866 J. Lindley & T. Moore Treasury Bot. II. 855/2 Pedatipartite, or pedatisect, when a pedate leaf has segments separated into so many distinct leaflets.
1951 Dict. Gardening (Royal Hort. Soc.) III. 1509/2 Pedatipartite, pedatisect, pedately cut more than halfway or almost to the main veins.
pedatisect adj.
Brit. /pᵻˈdeɪtᵻsɛkt/
,
/pᵻˈdatᵻsɛkt/
,
U.S. /pəˈdædəˌsɛk(t)/
,
/pəˈdeɪdəˌsɛk(t)/
[after post-classical Latin pedatisectus (A. P. de Candolle Théorie Elémentaire de la Bot. (1813) 338)] pedately divided almost to the base.
ΚΠ
1857 A. Henfrey Elem. Course Bot. §93 The general prefix pedati- may be used in the words pedatifid, pedatisect, or pedatipartite.
1937 A. B. Rendle Bentham & Hooker's Handbk. Brit. Flora (ed. 7) xvii If they [sc. leaves] are so cut into segments only, they are usually said to be pinnatisect, palmatisect, pedatisect, etc.
1997 Ann. Missouri Bot. Garden 84 337/1 The section is a small but natural group of 6-7 scandent species with irregularly pedatisect leaves.
pedatisected adj. Obsolete rare = pedatisect adj.
ΚΠ
1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Pedatisectus, applied by de Candolle to leaves with pedate nervures, which have their lobes divided almost to the nervure of the middle and the parenchyma interrupted..: pedatisected.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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