eponychiumn.

/ɛpəʊˈnɪkɪəm/

Etymology: modern Latin, < Greek ἐπί upon + ὄνυξ nail.

Anatomy.

(a) The horny embryonic structure whence the nail is developed. (b) A film of epidermis covering the dorsal part of the nail; = quick n.¹ 3a.

ΘΚΠ

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

root end1675

lunula1828

eponychium1885

cuticle1907

1885 tr. P. G. Unna in tr. H. W. von Ziemssen et al. Handbk. Dis. Skin i. 23 A trace of the horny layer of the first foetal months remains only on the ungual phalanx till a later period, and to this..I have given the name ‘eponychium’.

1892 C. S. Minot Human Embryol. 555 The epitrichial layer over the area has received the special name of eponychium from Unna.

1902 D. J. Cunningham Text-bk. Anat. 734 The part [of the epitrichium] which persists over the root of the nail is termed the eponychium, and covers the proximal part of the lunula.

1968 W. Bloom & D. W. Fawcett Textbk. Histol. (ed. 9) xxii. 495 Under the proximal fold, the horny layer spreads onto the free surface of the nail body as the eponychium.

This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2019).

单词	eponychium
释义	eponychiumn. /ɛpəʊˈnɪkɪəm/ Etymology: modern Latin, < Greek ἐπί upon + ὄνυξ nail. Anatomy. (a) The horny embryonic structure whence the nail is developed. (b) A film of epidermis covering the dorsal part of the nail; = quick n.¹ 3a. ΘΚΠ the world > life > the body > nail > [noun] > parts of nail root end1675 lunula1828 eponychium1885 cuticle1907 1885 tr. P. G. Unna in tr. H. W. von Ziemssen et al. Handbk. Dis. Skin i. 23 A trace of the horny layer of the first foetal months remains only on the ungual phalanx till a later period, and to this..I have given the name ‘eponychium’. 1892 C. S. Minot Human Embryol. 555 The epitrichial layer over the area has received the special name of eponychium from Unna. 1902 D. J. Cunningham Text-bk. Anat. 734 The part [of the epitrichium] which persists over the root of the nail is termed the eponychium, and covers the proximal part of the lunula. 1968 W. Bloom & D. W. Fawcett Textbk. Histol. (ed. 9) xxii. 495 Under the proximal fold, the horny layer spreads onto the free surface of the nail body as the eponychium. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2019). < n.1885
随便看	toilet lid toilet mirror toilet mouth toilet odds and ends toilet pail toilet paper toilet powder toilet quilt toilet roll toilet roll holder toilet room toilet seat toilet service toilet set toilet soap toilet sponge toilet stall toilet stand toilet table toilet tank toilet tent toilet tidy toilet tissue toilet train toilet trained