1) Animal tissue 2) Resembling muscle 
• (a.) Composed of, or resembling, muscular fiber.
(from the article `photoreception`) Pigment migration is combined with photomechanical movements of the photoreceptor cells of many lower vertebrates. In darkness the pigment granules ...
(mi´oid) resembling muscle.
My'oid adjective [ Myo- + - oid .] Composed of, or resembling, muscular fiber. 
Type: Term Pronunciation: mī′oyd Definitions: 1. Resembling muscle. 2. One of the fine, contractile, threadlike protoplasmic elements found in certain epithelial cells in lower animals. 3. A contractile part of retinal cones in certain fish and amphibia. In mammals, the myoid is the inner part of the inner segment of rods and cones; it c...
[adj] - resembling muscle
adjective resembling muscle