epicuticlen.

Brit.

/ˌɛpᵻˈkjuːtᵻkl/, U.S.

/ˌɛpəˈkjudək(ə)l/

Origin: Formed within English, by derivation. Etymons: epi- prefix, cuticle n.

Etymology: < epi- prefix + cuticle n. In sense 1 after German Epicuticula epicuticula n. In sense 2 after French épicuticule (L. Géneau de Lamarlière 1906, in Rev. gén. de bot. 18 291). With sense 3 compare earlier epicuticula n. 2.

†1. Zoology. The outermost layer of the shell in certain molluscs; = epicuticula n. 1. Obsolete. rare.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell

seashella900

shale1561

buckie1596

caracol1622

valve1661

spire1681

umbilicus1688

conch-shell1697

wart-shell?1711

needle1713

multivalve1753

concha1755

periosteum1758

conch1773

devil's claw1773

furbelow1776

peewit's egg1776

worm-tube1776

rosebud1815

sheath1815

periostracum1833

epicuticle1885

epicuticula1886

leg of mutton1891

trivalve1891

1885 Jrnl. Royal Microsc. Soc. 5 44 Our knowledge of the formation of the epicuticle is much better, owing especially to the studies of Tullberg.

2. Botany. A thin, often waxy layer covering the cuticle of a leaf or other part of a plant.

ΚΠ

1907 Jrnl. Royal Microsc. Soc. 316 In the cutinised regions [in aquatic plants] there is a thin, peripheral layer, the epicuticle, beneath which a thin cuticle develops.

1983 Weed Sci. 31 625/2 The epicuticle of vernolate-treated sicklepod had about 40% less fatty alcohols and hydrocarbons than the epicuticle of untreated plants.

2003 B. Thomas et al. Encycl. Appl. Plant Sci. I. 18/1 The cuticle proper is covered with a waxy epicuticle, which often gives a blue coloration to plant surfaces, for example, in many conifer leaves, in grapes.., and in cabbages.

3. Zoology. The thin, often waxy outermost layer of the cuticle of an insect or other arthropod. Cf. exocuticle n. a, endocuticle n. a.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > [noun]

insecta1738

Arthropoda1854

epicuticle1933

1933 Q. Jrnl. Microsc. Sci. 76 271 The cuticle [in the bug Rhodnius prolixus] consists of two primary layers: (i) a very thin epicuticle, and (ii) a relatively thick endocuticle.

1976 T. Hooper Guide to Bees & Honey i. 14 The cuticle is not waterproof and the insect would quickly dry out and die if it were not for a very thin covering over the cuticle called the epicuticle.

1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) xxiii. 136/2 The myriapods are terrestrial; lacking a wax layer in the epicuticle, like the Crustacea, they tend to remain in areas of high humidity to restrict water loss through the cuticle.

2009 V. H. Resh & R. T. Cardé Encycl. Insects (ed. 2) 528/2 To allow the animal to increase in size at molting, the epicuticle deposited above the apical cell surface has a larger area than the previous epicuticle.

4. A thin outer membrane surrounding a wool fibre or animal hair. Cf. exocuticle n. b, endocuticle n. b.

ΘΚΠ

the world > life > the body > hair > parts of hair > [noun]

pithOE

root end1675

shaft1748

medulla1826

stem1845

Henle's layer1850

Henle's sheath1853

epicuticle1949

1949 J. Lindberg et al. in Textile Res. Jrnl. 19 674/1 Proceeding from the outside of the fiber inward..the following have been described: (a) a very thin epicuticular membrane..forming the external surface of the fiber, (b) an exocuticle layer and (c) an endocuticle... The epicuticle, as seen in the electron microscope, appears as a thin, uniformly thick..film falling easily into folds.

1962 W. J. Onions Wool ii. 16 The epicuticle, a membrane about 100 Å thick (i.e. about 1/100th of the thickness of the total cuticle in wool) was isolated..by treating wool with a solution of sodium sulphide.

2011 Chem. Rev. 111 2538/2 Each cuticle cell contains a thin (5–10 nm) outer membrane, the epicuticle.

This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022).

单词	epicuticle
释义	epicuticlen. Brit. /ˌɛpᵻˈkjuːtᵻkl/, U.S. /ˌɛpəˈkjudək(ə)l/ Origin: Formed within English, by derivation. Etymons: epi- prefix, cuticle n. Etymology: < epi- prefix + cuticle n. In sense 1 after German Epicuticula epicuticula n. In sense 2 after French épicuticule (L. Géneau de Lamarlière 1906, in Rev. gén. de bot. 18 291). With sense 3 compare earlier epicuticula n. 2. †1. Zoology. The outermost layer of the shell in certain molluscs; = epicuticula n. 1. Obsolete. rare. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell seashella900 shale1561 buckie1596 caracol1622 valve1661 spire1681 umbilicus1688 conch-shell1697 wart-shell?1711 needle1713 multivalve1753 concha1755 periosteum1758 conch1773 devil's claw1773 furbelow1776 peewit's egg1776 worm-tube1776 rosebud1815 sheath1815 periostracum1833 epicuticle1885 epicuticula1886 leg of mutton1891 trivalve1891 1885 Jrnl. Royal Microsc. Soc. 5 44 Our knowledge of the formation of the epicuticle is much better, owing especially to the studies of Tullberg. 2. Botany. A thin, often waxy layer covering the cuticle of a leaf or other part of a plant. ΚΠ 1907 Jrnl. Royal Microsc. Soc. 316 In the cutinised regions [in aquatic plants] there is a thin, peripheral layer, the epicuticle, beneath which a thin cuticle develops. 1983 Weed Sci. 31 625/2 The epicuticle of vernolate-treated sicklepod had about 40% less fatty alcohols and hydrocarbons than the epicuticle of untreated plants. 2003 B. Thomas et al. Encycl. Appl. Plant Sci. I. 18/1 The cuticle proper is covered with a waxy epicuticle, which often gives a blue coloration to plant surfaces, for example, in many conifer leaves, in grapes.., and in cabbages. 3. Zoology. The thin, often waxy outermost layer of the cuticle of an insect or other arthropod. Cf. exocuticle n. a, endocuticle n. a. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > [noun] insecta1738 Arthropoda1854 epicuticle1933 1933 Q. Jrnl. Microsc. Sci. 76 271 The cuticle [in the bug Rhodnius prolixus] consists of two primary layers: (i) a very thin epicuticle, and (ii) a relatively thick endocuticle. 1976 T. Hooper Guide to Bees & Honey i. 14 The cuticle is not waterproof and the insect would quickly dry out and die if it were not for a very thin covering over the cuticle called the epicuticle. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) xxiii. 136/2 The myriapods are terrestrial; lacking a wax layer in the epicuticle, like the Crustacea, they tend to remain in areas of high humidity to restrict water loss through the cuticle. 2009 V. H. Resh & R. T. Cardé Encycl. Insects (ed. 2) 528/2 To allow the animal to increase in size at molting, the epicuticle deposited above the apical cell surface has a larger area than the previous epicuticle. 4. A thin outer membrane surrounding a wool fibre or animal hair. Cf. exocuticle n. b, endocuticle n. b. ΘΚΠ the world > life > the body > hair > parts of hair > [noun] pithOE root end1675 shaft1748 medulla1826 stem1845 Henle's layer1850 Henle's sheath1853 epicuticle1949 1949 J. Lindberg et al. in Textile Res. Jrnl. 19 674/1 Proceeding from the outside of the fiber inward..the following have been described: (a) a very thin epicuticular membrane..forming the external surface of the fiber, (b) an exocuticle layer and (c) an endocuticle... The epicuticle, as seen in the electron microscope, appears as a thin, uniformly thick..film falling easily into folds. 1962 W. J. Onions Wool ii. 16 The epicuticle, a membrane about 100 Å thick (i.e. about 1/100th of the thickness of the total cuticle in wool) was isolated..by treating wool with a solution of sodium sulphide. 2011 Chem. Rev. 111 2538/2 Each cuticle cell contains a thin (5–10 nm) outer membrane, the epicuticle. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online March 2022). < n.1885
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