piliferousadj.

Brit.

/pʌɪˈlɪf(ə)rəs/, U.S.

/paɪˈlɪf(ə)rəs/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin pilus , -iferous comb. form.

Etymology: < classical Latin pilus hair (see pilo- comb. form) + -iferous comb. form. Compare post-classical Latin piliferus (see quot. 1698 at main sense, where use of the feminine as a noun is apparently implied), French pilifère giving rise to hairs (1743), bearing hairs (1821).

Botany, Zoology, and (formerly) Anatomy. Bearing or having hair or a hair; covered with hair.

ΘΚΠ

the world > life > biology > physical aspects or shapes > villosity or ciliation > [adjective] > hairiness

hoary1597

hirsute1626

pilous1658

piliferous1698

hirsuted1707

pilose1712

piligerous1835

pileous1842

pilar1858

stuppeous1860

piline1887

pilary1888

1698 W. Cowper Anat. Humane Bodies sig. C/2 In the Skin also are placed those Bodies whence the Hairs arise; these, by some are also esteem'd Glands, and call'd Piliferae: These Piliferous Bodies or Glands, are furnished at their Roots with Importing and Exporting Blood Vessels, Nerves, &c.

1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 307 The oblique piliferous crest.

1857 W. R. Bullock tr. P. Cazeaux Theoret. & Pract. Treat. Midwifery (ed. 2) 45 The sebaceous and piliferous follicles are exceedingly numerous.

1877 Bot. Gaz. 2 109 Inner perichætial leaves very small and acute, piliferous.

1946 A. Nelson Princ. Agric. Bot. x. 268 The cells of the piliferous region, whether ‘blistered’ out into root hairs or not, provide the only path of entrance for all molecules..coming from the soil.

1998 Paleobiology 24 371/1 Other peculiarities are the very conspicuous piliferous foramina on the posterior margin of the dorsal carapace scutes.

Compounds

piliferous layer n. Botany the part of the epidermis of a root which bears root hairs.

ΚΠ

1885 G. L. Goodale in A. Gray & G. L. Goodale Bot. Text-bk. (ed. 6) II. i. iii. 108 The piliferous layer has no intercellular spaces.

1934 A. Arber Gramineae xii. 249 As in other desert grasses, the cells of the piliferous layer secrete mucilage in the region near the root tip, and thus cement the neighbouring sand grains.

1997 Amer. Jrnl. Bot. 84 851/2 Toward the base of the cotyledon, in the region of the root cap and piliferous layer, the primary root (radicle) differentiates.

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

单词	piliferous
释义	piliferousadj. Brit. /pʌɪˈlɪf(ə)rəs/, U.S. /paɪˈlɪf(ə)rəs/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin pilus , -iferous comb. form. Etymology: < classical Latin pilus hair (see pilo- comb. form) + -iferous comb. form. Compare post-classical Latin piliferus (see quot. 1698 at main sense, where use of the feminine as a noun is apparently implied), French pilifère giving rise to hairs (1743), bearing hairs (1821). Botany, Zoology, and (formerly) Anatomy. Bearing or having hair or a hair; covered with hair. ΘΚΠ the world > life > biology > physical aspects or shapes > villosity or ciliation > [adjective] > hairiness hoary1597 hirsute1626 pilous1658 piliferous1698 hirsuted1707 pilose1712 piligerous1835 pileous1842 pilar1858 stuppeous1860 piline1887 pilary1888 1698 W. Cowper Anat. Humane Bodies sig. C/2 In the Skin also are placed those Bodies whence the Hairs arise; these, by some are also esteem'd Glands, and call'd Piliferae: These Piliferous Bodies or Glands, are furnished at their Roots with Importing and Exporting Blood Vessels, Nerves, &c. 1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 307 The oblique piliferous crest. 1857 W. R. Bullock tr. P. Cazeaux Theoret. & Pract. Treat. Midwifery (ed. 2) 45 The sebaceous and piliferous follicles are exceedingly numerous. 1877 Bot. Gaz. 2 109 Inner perichætial leaves very small and acute, piliferous. 1946 A. Nelson Princ. Agric. Bot. x. 268 The cells of the piliferous region, whether ‘blistered’ out into root hairs or not, provide the only path of entrance for all molecules..coming from the soil. 1998 Paleobiology 24 371/1 Other peculiarities are the very conspicuous piliferous foramina on the posterior margin of the dorsal carapace scutes. Compounds piliferous layer n. Botany the part of the epidermis of a root which bears root hairs. ΚΠ 1885 G. L. Goodale in A. Gray & G. L. Goodale Bot. Text-bk. (ed. 6) II. i. iii. 108 The piliferous layer has no intercellular spaces. 1934 A. Arber Gramineae xii. 249 As in other desert grasses, the cells of the piliferous layer secrete mucilage in the region near the root tip, and thus cement the neighbouring sand grains. 1997 Amer. Jrnl. Bot. 84 851/2 Toward the base of the cotyledon, in the region of the root cap and piliferous layer, the primary root (radicle) differentiates. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1698
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