the crystalline, granular, or glassy base or matrix of a porphyritic or other igneous rock, in which the more prominent crystals are embedded.
the matrix of igneous rocks, such as porphyry, in which larger crystals (phenocrysts) are embedded
noun, Botany. 1. an area of primary meristematic tissue, emerging from and immediately behind the apical meristem, that develops into the pith and the cortex. ground meristem The primary meristem in vascular plants that gives rise to the nonvascular tissues, such as cortex, pericycle, and pith. Within the seeds of angiosperms, it surrounds the procambium.
[ground-nuht] /ˈgraʊndˌnʌt/ noun 1. Also called wild bean, potato bean. a twining, North American plant, Apios americana (or A. tuberosa), of the legume family, having clusters of fragrant brownish flowers and an edible tuber. 2. any of several other plants having edible underground parts, as the . 3. South Atlantic States. . /ˈɡraʊndˌnʌt/ noun 1. […]
- Groundnut oil
noun 1. a mild-tasting oil extracted from peanuts and used in cooking
noun 1. a person stationed in a position on the ground to watch, follow, and report on flights of aircraft, especially of enemy aircraft.