polycotyledonousadj.

Brit.

/ˌpɒlɪˌkɒtᵻˈliːdn̩əs/, U.S.

/ˈˌpɑliˌkɑdəˈlidənəs/,

/ˈˌpɑliˌkɑdəˈlidn̩əs/

Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: poly- comb. form, cotyledon n., -ous suffix.

Etymology: < poly- comb. form + cotyledon n. + -ous suffix, after scientific Latin Polycotyledones (see polycotyledon n.). Compare earlier monocotyledonous adj. and later cotyledonous adj.

Botany.

(Of a plant embryo) having more than two cotyledons; (of a plant) producing such embryos, as many conifers.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [adjective] > mono-, di-, or polycotyledonous

monocotyledonous1770

dicotyledonous1785

polycotyledonous1800

monocotyle1828

monocotyledonous1849

dictyogenous1852

dicotyledonary1870

monocotylous1905

monocot1938

polycotyledonary1989

monocotyl1995

1800 J. Hull Elements Bot. I. 49 Placentation... Polycotyledonous, polycotyledones, plants having more than two cotyledons.

1849 J. H. Balfour Man. Bot. i. ii. 286 (note) Cotyledons [in the embryo of fir], which are numerous; the plant being polycotyledonous.

1880 A. Gray Struct. Bot. ii. 23 The Polycotyledonous Embryo is one having a whorl of more than two seed-leaves.

1931 New Phytologist 30 68 These polycotyledonous seedlings occurred in the garden.

1992 Bull. de la Soc. Bot. de France 139 235 These results invite a reconsideration of former conclusions based on observing ontogenesis in polycotyledonous Gymnosperms.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polycotyledonous
释义	polycotyledonousadj. Brit. /ˌpɒlɪˌkɒtᵻˈliːdn̩əs/, U.S. /ˈˌpɑliˌkɑdəˈlidənəs/, /ˈˌpɑliˌkɑdəˈlidn̩əs/ Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: poly- comb. form, cotyledon n., -ous suffix. Etymology: < poly- comb. form + cotyledon n. + -ous suffix, after scientific Latin Polycotyledones (see polycotyledon n.). Compare earlier monocotyledonous adj. and later cotyledonous adj. Botany. (Of a plant embryo) having more than two cotyledons; (of a plant) producing such embryos, as many conifers. ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [adjective] > mono-, di-, or polycotyledonous monocotyledonous1770 dicotyledonous1785 polycotyledonous1800 monocotyle1828 monocotyledonous1849 dictyogenous1852 dicotyledonary1870 monocotylous1905 monocot1938 polycotyledonary1989 monocotyl1995 1800 J. Hull Elements Bot. I. 49 Placentation... Polycotyledonous, polycotyledones, plants having more than two cotyledons. 1849 J. H. Balfour Man. Bot. i. ii. 286 (note) Cotyledons [in the embryo of fir], which are numerous; the plant being polycotyledonous. 1880 A. Gray Struct. Bot. ii. 23 The Polycotyledonous Embryo is one having a whorl of more than two seed-leaves. 1931 New Phytologist 30 68 These polycotyledonous seedlings occurred in the garden. 1992 Bull. de la Soc. Bot. de France 139 235 These results invite a reconsideration of former conclusions based on observing ontogenesis in polycotyledonous Gymnosperms. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.1800
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