Vascular layer
vascular layer n.
The outer portion of the choroid of the eye, containing the largest blood vessels. Also called vascular layer of choroid.
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- Vascular leiomyoma
vascular leiomyoma n. A leiomyoma apparently arising from the smooth muscle of blood vessels. Also called angioleiomyoma, angiomyoma.
- Vascular nerve
vascular nerve n. A small nerve filament that supplies the wall of a blood vessel.
- Vascular-plant
noun 1. a plant having a vascular system. vascular plant Any of various plants that have the vascular tissues xylem and phloem. The vascular plants include all seed-bearing plants (the gymnosperms and angiosperms) and the pteridophytes (including the ferns, lycophytes, and horsetails). Also called tracheophyte. Compare nonvascular plant.
- Vascular polyp
vascular polyp n. A bulging or protruding angioma of the nasal mucous membrane.
- Vascular-ray
noun, Botany. 1. a radiate band of parenchyma in the secondary xylem extending into the secondary phloem of the stems of certain vascular plants, formed by the cambium and serving for the storage of food and the conduction of nutriments. vascular ray noun 1. another name for medullary ray