| amacrine | 1. A cell or structure lacking a long, fibrous process. 2. Denoting such a cell or structure. See: amacrine cell. Origin: G. A-priv. + makros, long, + is (in-), fibre (05 Mar 2000) |
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| amacrine cell | <cell biology> A class of neuron of the middle layer of the retina, with processes parallel to the plane of the retina. They are thought to be involved in image processing. (18 Nov 1997) |