retuseadj.

Brit.

/rᵻˈtjuːs/,

/rᵻˈtʃuːs/, U.S.

/rəˈt(j)us/

Origin: A borrowing from Latin. Etymons: Latin retūsus, retundere.

Etymology: < classical Latin retūsus not sharp, blunt, in post-classical Latin and scientific Latin also having a broad or rounded end with a notch or indentation at the apex (1724 or earlier in botanical, 1758 or earlier in zoological use), use as adjective of past participle of retundere retund v.

†1. Impeded or weakened; (also) blunt. Obsolete. rare.

ΚΠ

1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana iii. ii. 137 These partial or retuse motions are less swift.

1678 J. Browne Compl. Disc. Wounds xxxiv. 177 Dodonaeus writes of one, who..received a Wound in the upper part of his Head, in the left side thereof, by a retuse Instrument of small weight.

1681 J. Browne Compl. Treat. Muscles 39 It will be well to use in this Operation the Lancet that is retuse on one side like the Penknife.

2. Having a broad or rounded end with a notch or indentation at the apex; shallowly notched.

a. Botany. Of a leaf, petal, etc.

ΘΚΠ

the world > plants > part of plant > part defined by form or function > [adjective] > having a rounded end

truncated1752

obtuse1753

premorse1753

retuse1753

spatulate1760

spatulated1777

lopped1787

succise1880

1753 Chambers's Cycl. Suppl. at Leaf Retuse leaf,..a leaf whose extremity is terminated by an obtuse line.

1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. xxv. 362 The leaves are retuse.

1847 W. E. Steele Handbk. Field Bot. 37 Pet. roundish, retuse, with an involute, broad, retuse point.

1870 J. D. Hooker Student's Flora Brit. Islands 331 Buxus sempervirens... Leaves ½—1 in., obtuse or retuse.

1901 A. H. Buck Ref. Handbk. Med. Sci. (rev. ed.) III. 154/2 The apex is often very slightly retuse, and the midrib produced into a slight apiculation or mucronation.

1950 Amer. Midland Naturalist 43 233 Apex mostly obtuse to rounded or rarely retuse, sometimes apiculate or plicately so.

1996 Kew Bull. 51 766 This species, with its short inflorescences, is noteworthy for its blunt, rounded and usually retuse leaves.

b. Entomology. Of the margin of a part. Now rare.

ΘΚΠ

the world > animals > animal body > general parts > [adjective] > retuse

retuse1773

the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of general parts > retuse

retuse1773

1773 T. P. Yeats tr. C. Linnaeus Inst. Entomol. 185 Their thorax..is less retuse than that of the other genus.

1824 T. Say in Jrnl. Acad. Nat. Sci. Philad. 3 ii. 298 Eyes elongated, retuse behind the antennæ.

1826 W. Kirby & W. Spence Introd. Entomol. III. xxxvi. 711 At its base it [sc. the abdomen] is truncated in Sirex; retuse in most bees.

1947 Trans. Amer. Entomol. Soc. 73 8 Clypeus..; median lobe broad, weakly differentiated, the apical margin inconspicuously retuse medially.

This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).

单词	retuse
释义	retuseadj. Brit. /rᵻˈtjuːs/, /rᵻˈtʃuːs/, U.S. /rəˈt(j)us/ Origin: A borrowing from Latin. Etymons: Latin retūsus, retundere. Etymology: < classical Latin retūsus not sharp, blunt, in post-classical Latin and scientific Latin also having a broad or rounded end with a notch or indentation at the apex (1724 or earlier in botanical, 1758 or earlier in zoological use), use as adjective of past participle of retundere retund v. †1. Impeded or weakened; (also) blunt. Obsolete. rare. ΚΠ 1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana iii. ii. 137 These partial or retuse motions are less swift. 1678 J. Browne Compl. Disc. Wounds xxxiv. 177 Dodonaeus writes of one, who..received a Wound in the upper part of his Head, in the left side thereof, by a retuse Instrument of small weight. 1681 J. Browne Compl. Treat. Muscles 39 It will be well to use in this Operation the Lancet that is retuse on one side like the Penknife. 2. Having a broad or rounded end with a notch or indentation at the apex; shallowly notched. a. Botany. Of a leaf, petal, etc. ΘΚΠ the world > plants > part of plant > part defined by form or function > [adjective] > having a rounded end truncated1752 obtuse1753 premorse1753 retuse1753 spatulate1760 spatulated1777 lopped1787 succise1880 1753 Chambers's Cycl. Suppl. at Leaf Retuse leaf,..a leaf whose extremity is terminated by an obtuse line. 1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. xxv. 362 The leaves are retuse. 1847 W. E. Steele Handbk. Field Bot. 37 Pet. roundish, retuse, with an involute, broad, retuse point. 1870 J. D. Hooker Student's Flora Brit. Islands 331 Buxus sempervirens... Leaves ½—1 in., obtuse or retuse. 1901 A. H. Buck Ref. Handbk. Med. Sci. (rev. ed.) III. 154/2 The apex is often very slightly retuse, and the midrib produced into a slight apiculation or mucronation. 1950 Amer. Midland Naturalist 43 233 Apex mostly obtuse to rounded or rarely retuse, sometimes apiculate or plicately so. 1996 Kew Bull. 51 766 This species, with its short inflorescences, is noteworthy for its blunt, rounded and usually retuse leaves. b. Entomology. Of the margin of a part. Now rare. ΘΚΠ the world > animals > animal body > general parts > [adjective] > retuse retuse1773 the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of general parts > retuse retuse1773 1773 T. P. Yeats tr. C. Linnaeus Inst. Entomol. 185 Their thorax..is less retuse than that of the other genus. 1824 T. Say in Jrnl. Acad. Nat. Sci. Philad. 3 ii. 298 Eyes elongated, retuse behind the antennæ. 1826 W. Kirby & W. Spence Introd. Entomol. III. xxxvi. 711 At its base it [sc. the abdomen] is truncated in Sirex; retuse in most bees. 1947 Trans. Amer. Entomol. Soc. 73 8 Clypeus..; median lobe broad, weakly differentiated, the apical margin inconspicuously retuse medially. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < adj.1654
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