retroserrateadj.

Brit.

/ˌrɛtrə(ʊ)ˈsɛreɪt/, U.S.

/ˌrɛtrəˈsɛreɪt/,

/ˌrɛtrəˈsɛrət/

Origin: Formed within English, by derivation. Etymons: retro- prefix, serrate adj.

Etymology: < retro- prefix + serrate adj.

Zoology and Botany.

Having or denoting serrations which are angled downwards or backwards, as on the stings of stingrays or the leaves of certain plants.

ΚΠ

1843 R. T. Lowe Hist. Fishes Madeira I. xv. 103 Close behind it on the tail are one or sometimes two flattened two-edged straight acuminate spines..with their edges barbed, or retro-serrate from the point.

1857 A. Henfrey Elem. Course Bot. 55 The margins of the leaf are..retroserrate, when sharp teeth point back towards the base.

1902 F. W. Oliver et al. tr. A. Kerner von Marilaun Nat. Hist. Plants I. 678 In this speedwell, the retroserrate teeth of the leaf-margin have undoubtedly no other significance than that of firm anchorage.

1987 Clinics Dermatol. 5 30/2 Withdrawal of the sting may result in extensive tissue damage due to retroserrate or recurved dentinal spines.

2001 J. N. Zuckerman Princ. & Pract. Trav. Med. 337/2 When trodden on they [sc. stingrays] whip their tail forward, which possesses a retroserrate sting.

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

单词	retroserrate
释义	retroserrateadj. Brit. /ˌrɛtrə(ʊ)ˈsɛreɪt/, U.S. /ˌrɛtrəˈsɛreɪt/, /ˌrɛtrəˈsɛrət/ Origin: Formed within English, by derivation. Etymons: retro- prefix, serrate adj. Etymology: < retro- prefix + serrate adj. Zoology and Botany. Having or denoting serrations which are angled downwards or backwards, as on the stings of stingrays or the leaves of certain plants. ΚΠ 1843 R. T. Lowe Hist. Fishes Madeira I. xv. 103 Close behind it on the tail are one or sometimes two flattened two-edged straight acuminate spines..with their edges barbed, or retro-serrate from the point. 1857 A. Henfrey Elem. Course Bot. 55 The margins of the leaf are..retroserrate, when sharp teeth point back towards the base. 1902 F. W. Oliver et al. tr. A. Kerner von Marilaun Nat. Hist. Plants I. 678 In this speedwell, the retroserrate teeth of the leaf-margin have undoubtedly no other significance than that of firm anchorage. 1987 Clinics Dermatol. 5 30/2 Withdrawal of the sting may result in extensive tissue damage due to retroserrate or recurved dentinal spines. 2001 J. N. Zuckerman Princ. & Pract. Trav. Med. 337/2 When trodden on they [sc. stingrays] whip their tail forward, which possesses a retroserrate sting. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < adj.1843
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