| 释义 |
lentoid, a.|ˈlɛntɔɪd|
[f. L. lent- lens n. + -oid.]
Having the form of a lens or lentil; lens-shaped.
1879in Webster, Suppl. 1880Athenæum 21 Aug. 245/2 The other lentoid gems take their places in series with those which have been collected from the Greek islands. 1884Sayce Anc. Emp. East 230 The lentoid gems..are all closely allied in artistic style to the Hittite carved stones. 1900A. S. Murray in Brit. Mus. Return 64 Haematite lentoid seal, engraved with the figure of a man with horse's head.
Add:B. n. Embryol. A lens-shaped or spherical structure composed of retinal cells adhering together.
1940Jrnl. Exper. Zool. LXXXIII. 115 Description of injuries to the optic cup and the relation of lenses and lentoids to the edges of the iris are given..to show the improbability of considering such cases as examples of lenses arising from the iris. 1956Acta Morphol. Neerlando-Scand. I. 88 Next to the depressed ectoderm there is an extensive placode area. The lentoid is localized at the exact edge of the thickened ectoderm plate. 1979Nature 6 Dec. 628/2 Lentoids (structures composed of lens fibre cells) have the highest proportions of σ-crystallins when derived from retinas of earlier embryonic stages. |