(mathematics) A vector with the length of 1.

plural of unit vector

(mathematics) a function mapping a subset of ℝⁿ into a subset of ℝⁿ / (differential geometry) a function which associates, to each point on a surface, a vector in the tangent plane of that point

(physics, mathematics) A vector whose direction is that of the direction of propagation of a wave, and whose magnitude is inversely proportional to its wavelength

(electromagnetism) The vector obtained in the direction of a right-hand screw from the cross product (vector product) of the electric field vector rotated into the magnetic field vector of an electromagnetic wave. Note: The Poynting vector, with transmission media parameters and constants, gives the irradiance and direction of propagation of the electromagnetic wave. Mathematically: ⃑P=⃑E⨯⃑H.

(mathematics) A vector in four-dimensional vector space, especially one having three spatial dimensions and one temporal dimension.

(computing) Geometrical primitives based upon mathematical equations to represent images in computer graphics, contrasted with raster graphics.

(physics) Any of a family of gauge bosons having a spin quantum number of one

(crystallography) A mathematical vector that represents the magnitude and direction of the distortion in a dislocation in a crystal lattice.

plural of Burgers vector