Segment

Segment, segmentation, segmented, or segmental may refer to:

Biology

 * Segmentation (biology), the division of body plans into a series of repetitive segments
 * Segmentation in the human nervous system
 * Internodal segment, the portion of a nerve fiber between two Nodes of Ranvier
 * Segment, in fruit anatomy, a section of a citrus fruit
 * Parts of a genome, especially in virology

Computing and communications

 * Memory segmentation, the division of computer memory into segments
 * Segment descriptor
 * Data segment
 * Code segment
 * Image segmentation, the process of partitioning a digital image into multiple segments
 * Time-series segmentation, the process of partitioning a time-series into a sequence of discrete segments in order to reveal the underlying properties of its source
 * Network segmentation, splitting a computer network into subnetworks
 * Network segment
 * Packet segmentation, the process of dividing a data packet into smaller units
 * Segmentation and reassembly
 * TCP segmentation, the process of dividing a data stream into segments for transmission
 * Segment architecture, a detailed, formal description of areas within an enterprise

Geometry

 * Line segment, part of a line bounded by two end points
 * Circular segment, the region of a circle cut off from the rest by a secant or chord
 * Spherical segment, the solid defined by cutting a sphere with a pair of parallel planes
 * Arc (geometry), a closed segment of a differentiable curve

Linguistics

 * Segment (handwriting), the pen-tip trajectory between two defined points
 * Segment (linguistics), a discrete unit of speech
 * Speech segmentation, identifying the boundaries between words in spoken languages
 * Text segmentation, dividing written text into meaningful units

Other uses

 * Segmentary lineage, a model in social anthropology
 * Market segmentation, dividing a broad market into sub-groups of consumers
 * Euro Car Segment, EU descriptions of car types
 * A-segment, first category in the passenger car classification system defined by the European Commission.