1
- each of the parts into which something is or may be divided部分; 片段。
1.1
- a portion of time allocated to a particular broadcast item on radio or television（特定广播或电视节目的）时间段。
1.2
- a separate broadcast item, typically one of a number that make up a particular programme某一时段单独播放的节目。
1.3
- Phonetics the smallest distinct part of a spoken utterance, especially with regard to vowel and consonant sounds rather than stress or intonation【语音学】（元音、辅音的）切分成分。
1.4
- Zoology each of the series of similar anatomical units of which the body and appendages of some animals are composed, such as the visible rings of an earthworm's body【动】体节; 节。
2
- Geometry a part of a figure cut off by a line or plane intersecting it, in particular【几何】用线（或面）截得的部分图形, 尤指：
2.1
- the part of a circle enclosed between an arc and a chord弓形。
2.2
- the part of a line included between two points线段。
2.3
- the part of a sphere cut off by any plane not passing through the centre球缺。
(一般读/segˈment/)with obj.
1- divide (something) into separate parts or sections分割; 划分：
the unemployed are segmented into two groups.
失业者划分为两类。
1.1
- no obj. divide into separate parts or sections分割; 划分：
the market is beginning to segment into a number of well-defined categories.
市场正在分化成明确的几类。
1.2
- no obj. Embryology (of a cell) undergo cleavage; divide into many cells【胚】（细胞）分裂。
派生词
segmentary
adjectivesegmentation
noun词源
late 16th cent. (as a term in geometry)： from Latin segmentum, from secare 'to cut'. The verb dates from the mid 19th cent.