| 单词 |
hyaloid |
| 释义 |
hyaloid, a. and n.|ˈhaɪəlɔɪd|
[a. F. hyaloïde, or ad. L. hyaloīdes, a. Gr. ὑαλοειδής like glass, glassy, f. ὕαλος glass: see hyaline.]
A. adj. (Chiefly Anat.)
a. Glassy, hyaline. hyaloid coat or hyaloid membrane, a thin transparent membrane enveloping the vitreous humour of the eye. hyaloid body, hyaloid humour, hyaloid substance: names for the vitreous humour (Syd. Soc. Lex.).
b. Connected with the hyaloid membrane, as hyaloid artery, hyaloid canal, hyaloid vein (ibid.).
1835–6Todd Cycl. Anat. I. 306/1 The outer capsule formed by the hyaloid membrane. Ibid. 553/1 The hyaloid coat..is perfectly transparent. 1838Penny Cycl. X. 139/1 There can be no doubt that the vitreous humour is secreted by the surfaces of the hyaloid cells. 1877Huxley Anat. Inv. Anim. viii. 527 Covered by a thick hyaloid membrane.
B. n.
1. Anat. The hyaloid membrane: see A. a.
[1670Phil. Trans. V. 1025 The Hyaloeides, which invelopes the Vitreous humour, is perfectly transparent.] 1838Penny Cycl. X. 138/2 The pigment left by the ciliary body, which..rests upon that portion of the surface of the hyaloid. 1869Eng. Mech. 3 Dec. 272/2 Beyond this hyaloid..is the retina.
2. = hyaline B. 1.
1844Blackw. Mag. LVI. 31 A picturesque rock, immersed up to its shoulders in a green hyaloid. |
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