Unoccupied+space
51opening — /oh peuh ning/, n. 1. an act or instance of making or becoming open. 2. the act of a person or thing that opens. 3. an unobstructed or unoccupied space or place. 4. a void in solid matter; a gap, hole, or aperture. 5. a tract of land thinly… …
52over-illumination — noun a) Excess light supplied beyond the amount required for a given task. The buildings architect failed to account for natural light availability and specified more lighting fixtures than needed, resulting in over illumination and leading to… …
53aether — n. (Physics) theoretical medium of great elasticity and extreme thinness of consistency supposed to fill all unoccupied space and transmit light and heat …
54opening — o•pen•ing [[t]ˈoʊ pə nɪŋ[/t]] n. 1) an act or instance of making or becoming open 2) an unobstructed or unoccupied space or place 3) a hole or void in solid matter 4) the act of beginning; start 5) the first part or initial stage of anything 6)… …
55matrix algebra — noun the part of algebra that deals with the theory of matrices • Topics: ↑mathematics, ↑math, ↑maths • Members of this Topic: ↑diagonalization, ↑diagonalisation • Hypernyms: ↑algebra …
56spacer — space ► NOUN 1) unoccupied ground or area. 2) a free or unoccupied area or expanse. 3) the dimensions of height, depth, and width within which all things exist and move. 4) a blank between typed or written words or characters. 5) (also outer… …
57spacing — space ► NOUN 1) unoccupied ground or area. 2) a free or unoccupied area or expanse. 3) the dimensions of height, depth, and width within which all things exist and move. 4) a blank between typed or written words or characters. 5) (also outer… …
58Mir — This article is about the Soviet/Russian space station. For other uses, see Mir (disambiguation). Mir …
59Dirac equation — Quantum field theory (Feynman diagram) …
60Metapopulation — A metapopulation consists of a group of spatially separated populations of the same species which interact at some level. The term metapopulation was coined by Richard Levins in 1970 to describe a model of population dynamics of insect pests in… …