labellumn.

Brit.

/ləˈbɛləm/, U.S.

/ləˈbɛləm/

Inflections: Plural labella, labellums.

Origin: A borrowing from Latin. Etymon: Latin labellum.

Etymology: < scientific Latin labellum (early 17th cent. or earlier in post-classical Latin in botany, a1826 in entomology), specific uses of classical Latin labellum lip < labrum labrum n.¹ + -ellum -ellum suffix. Compare earlier label n.²In plural form labella after the Latin plural form.

1. Botany. Originally: the lower lip, or a distinctive lower petal, of the corolla of any of various flowers. In later use: spec. the middle, often lowest petal of an orchid flower, typically larger and of a different shape from the other two petals. Cf. label n.², labium n. 3.

ΘΚΠ

the world > plants > particular plants > cultivated or valued plants > particular cultivated or ornamental plants > particular flower or plant esteemed for flower > [noun] > orchids > parts of

cullions1611

thyrsus1704

labellum1810

retinaculum1821

rostellum1821

caudicle1830

pseudobulb1832

massula1856

antenna1862

clinandrium1864

bucket1871

slipper1902

1810 Curtis's Bot. Mag. 32 1320 In the latter [sc. other species of Globba] the laciniæ are nearly equal and similar except the labellum.

1830 J. Lindley Introd. Nat. Syst. Bot. 263 Sometimes it [sc. the anther] stands erect, the line of dehiscence of its lobes being turned towards the labellum.

1866 C. Darwin Origin of Species (ed. 4) vi. 229 This orchid has part of its labellum or lower lip hollowed out into a great bucket.

1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 882 The labellum of Megaclinium falcatum.

1907 Jrnl. W. Austral. Nat. Hist. Soc. Nov. 7 The grotesque shape of the labellum [of the orchid Caladenia barbarossae] suggests to me some member of the mantis order.

1945 W. O. Howarth & L. G. G. Warne Lowson's Textbk. Bot. (ed. 9) xiii. 298 Owing to the twisting of the inferior ovary, the labellum [sc. of Orchidaceae] comes to be anterior.

2013 Proc. Royal Soc. B. 280 2/2 Measurements were taken from the labellum (a modified petal) of all orchid species.

2. Entomology. In various dipteran flies: either of a pair of lobes or pads at the far end of the proboscis.

ΚΠ

1826 W. Kirby & W. Spence Introd. Entomol. III. 361 Proboscis. The oral instrument of Diptera, in which the ordinary Trophi are replaced by an exarticulate sheath, terminated by Labella.

1892 Trans. Amer. Entomol. Soc. 19 111 Proboscis black, labella dark brown, palpi blackish and clothed with a few black bristles.

1943 R. E. Snodgrass Feeding Apparatus Biting & Disease-carrying Flies 30 in Smithsonian Misc. Coll. 104 In their size, shape, and structure the labella of the Tabanidae differ from these organs in the other bloodsucking Diptera.

1978 Sci. Amer. June 119/1 It has all six legs on the surface of the victim's skin, its hairy labella touching the skin and its maxillary palps raised.

2014 Proc. National Acad. Sci. U.S.A. 111 8143/2 Drosophila has on its labellum (mouthpart), legs, and wings many taste sensilla that have bristle-like structures.

This entry has been updated (OED Third Edition, June 2018; most recently modified version published online March 2022).

单词	labellum
释义	labellumn. Brit. /ləˈbɛləm/, U.S. /ləˈbɛləm/ Inflections: Plural labella, labellums. Origin: A borrowing from Latin. Etymon: Latin labellum. Etymology: < scientific Latin labellum (early 17th cent. or earlier in post-classical Latin in botany, a1826 in entomology), specific uses of classical Latin labellum lip < labrum labrum n.¹ + -ellum -ellum suffix. Compare earlier label n.²In plural form labella after the Latin plural form. 1. Botany. Originally: the lower lip, or a distinctive lower petal, of the corolla of any of various flowers. In later use: spec. the middle, often lowest petal of an orchid flower, typically larger and of a different shape from the other two petals. Cf. label n.², labium n. 3. ΘΚΠ the world > plants > particular plants > cultivated or valued plants > particular cultivated or ornamental plants > particular flower or plant esteemed for flower > [noun] > orchids > parts of cullions1611 thyrsus1704 labellum1810 retinaculum1821 rostellum1821 caudicle1830 pseudobulb1832 massula1856 antenna1862 clinandrium1864 bucket1871 slipper1902 1810 Curtis's Bot. Mag. 32 1320 In the latter [sc. other species of Globba] the laciniæ are nearly equal and similar except the labellum. 1830 J. Lindley Introd. Nat. Syst. Bot. 263 Sometimes it [sc. the anther] stands erect, the line of dehiscence of its lobes being turned towards the labellum. 1866 C. Darwin Origin of Species (ed. 4) vi. 229 This orchid has part of its labellum or lower lip hollowed out into a great bucket. 1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 882 The labellum of Megaclinium falcatum. 1907 Jrnl. W. Austral. Nat. Hist. Soc. Nov. 7 The grotesque shape of the labellum [of the orchid Caladenia barbarossae] suggests to me some member of the mantis order. 1945 W. O. Howarth & L. G. G. Warne Lowson's Textbk. Bot. (ed. 9) xiii. 298 Owing to the twisting of the inferior ovary, the labellum [sc. of Orchidaceae] comes to be anterior. 2013 Proc. Royal Soc. B. 280 2/2 Measurements were taken from the labellum (a modified petal) of all orchid species. 2. Entomology. In various dipteran flies: either of a pair of lobes or pads at the far end of the proboscis. ΚΠ 1826 W. Kirby & W. Spence Introd. Entomol. III. 361 Proboscis. The oral instrument of Diptera, in which the ordinary Trophi are replaced by an exarticulate sheath, terminated by Labella. 1892 Trans. Amer. Entomol. Soc. 19 111 Proboscis black, labella dark brown, palpi blackish and clothed with a few black bristles. 1943 R. E. Snodgrass Feeding Apparatus Biting & Disease-carrying Flies 30 in Smithsonian Misc. Coll. 104 In their size, shape, and structure the labella of the Tabanidae differ from these organs in the other bloodsucking Diptera. 1978 Sci. Amer. June 119/1 It has all six legs on the surface of the victim's skin, its hairy labella touching the skin and its maxillary palps raised. 2014 Proc. National Acad. Sci. U.S.A. 111 8143/2 Drosophila has on its labellum (mouthpart), legs, and wings many taste sensilla that have bristle-like structures. This entry has been updated (OED Third Edition, June 2018; most recently modified version published online March 2022). < n.1810
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