from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An underlying layer.
- n. A layer of earth beneath the surface soil; subsoil.
- n. A foundation or groundwork.
- n. The material on which another material is coated or fabricated.
- n. Philosophy The characterless substance that supports attributes of reality.
- n. Biology A substrate.
- n. Linguistics A substrate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A layer that lies underneath another
- n. The underlying cause or basis of something
from the GNU version of the Collaborative International Dictionary of English
- n. That which is laid or spread under; that which underlies something, as a layer of earth lying under another; specifically (Agric.), the subsoil.
- n. The permanent subject of qualities or cause of phenomena; substance.
from The Century Dictionary and Cyclopedia
- n. That which is laid or spread under; a stratum lying under another; in agriculture, the subsoil; hence, anything which underlies or supports: as, a substratum of truth.
- n. In metaphysics, substance, or matter, as that in which qualities inhere.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a surface on which an organism grows or is attached
- n. an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population
- n. any stratum or layer lying underneath another
New Latin substrātum, from neuter of Latin substrātus, past participle of substernere, to lay under : sub-, sub- + sternere, to stretch, spread.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin sub, under + stratum, layer (Wiktionary)