A rack having a cogged surface.

(marketing) A group of customers that share at least one characteristic in one homogenous market.

(geometry) A region of a circle bounded by an arc and the chord connecting the endpoints of the arc.

(engineering) A piece for receiving or communicating reciprocating motion from or to a cogwheel, consisting of a sector of a circular gear, or ring, having cogs on the periphery, or face.

(computer science) A data structure that is used to store information about intervals (segments) and perform range queries, or queries on a set of intervals, in logarithmic time.

plural of segment gear

Of an electronic device or display: consisting of three horizontal and four vertical lines, in an arrangement similar to the shape of the number 8, that may be individually shown or hidden, usually for the display of numeric digits; or consisting of a set of these arrangements.

(embryology) A molecular oscillator, governed by periodic shifts in gene expression, which influences the timing of vertebrate somitogenesis.

plural of segmentation fault

(computing) A software error that occurs when a program attempts to access a memory location that it is not permitted to access.