**orientationally** — adverb see orientation … New Collegiate Dictionary

**Dimensional analysis** — In physics and all science, dimensional analysis is a tool to find or check relations among physical quantities by using their dimensions. The dimension of a physical quantity is the combination of the basic physical dimensions (usually mass,… … Wikipedia

**orientation** — noun Date: 1839 1. a. the act or process of orienting or of being oriented b. the state of being oriented; broadly arrangement, alignment 2. a. a usually general or lasting direction of thought, inclination, or interest b. a person s self… … New Collegiate Dictionary

**Adamantane** — Adamantane … Wikipedia

**Discrete dipole approximation codes** — This article contains list of discrete dipole approximation codes and their applications. The discrete dipole approximation (DDA) is a flexible technique for computing scattering and absorption by targets of arbitrary geometry. Given a target of… … Wikipedia

**Distance of closest approach of ellipses and ellipsoids** — The distance of closest approach of two objects is the distance between their centers when they are externally tangent. The objects may be geometric shapes or physical particles with well defined boundaries. The distance of closest approach is… … Wikipedia