| delle | The central lighter-coloured portion of the erythrocyte, as observed in a stained film of blood. Origin: D. Delle, low ground, pit (05 Mar 2000) |
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| dellen | Shallow, saucer-like, clearly defined excavations at the margin of the cornea, about 1.5 by 2 mm, due to localised dehydration; also called Fuchs' dellen. Origin: D. Pl. Of delle, low ground, pit (05 Mar 2000) |