| 释义 |
▪ I. emarginate, a.|ɪˈmɑːdʒɪnət|
[ad. L. ēmarginātus, pa. pple. of ēmargināre: see next.]
1. Notched at the margin: said of portions of animal or vegetable organisms. In Bot. chiefly of leaves or petals: Having a notch at the apex.
1794Martyn Rousseau's Bot. v. 52 The end..is emarginate or slightly notched. 1830Lindley Nat. Syst. Bot. 58 Stigma emarginate. 1835Kirby Hab. & Inst. Anim. I. viii. 244 The valves of the shells..are emarginate. 1882Vines Sachs' Bot. 510 The leaves are flat and broader..with a deeply emarginate apex.
2. Cryst. Having the edges of the primitive form cut off.
▪ II. emarginate, v.|ɪˈmɑːdʒɪneɪt|
[f. L. ēmargināt- ppl. stem of ēmarginā-re to remove the edge.]
†1. trans. To remove the morbid matter from the edges of wounds, etc. Obs.—0
1656Blount Glossogr., Emarginate, to take away the scurf about the brims of wounds or soars.
2. Cryst. (See quot. 1817 under emarginated.)
3. Optics. Of the effects of unequal refraction: To emphasize or double the contour lines of (an object embedded, e.g., in a jelly).
1881Lankester in Jrnl. Microsc. Sc. Jan. 127 These groups..are strongly emarginated by the difference of refractive index between their substance and that of the material in which they are deposited. |