dissepiment

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dis·sep·i·ment

 (dĭ-sĕp′ə-mənt)
n.
Biology A partition dividing a part or organ; a septum.

[Latin dissaepīmentum, partition, from dissaepīre, to divide : dis-, dis- + saepīre, hedge off (from saepēs, hedge).]

dis·sep′i·men′tal (-mĕn′tl) adj.

dissepiment

(dɪˈsɛpɪmənt)
n
(Biology) biology a dividing partition or membrane, such as that between the chambers of a syncarpous ovary
[C18: from Late Latin dissaepīmentum, from dis-1 + saepīmentum hedge, from saepīre to enclose]
disˌsepiˈmental adj

sep•tum

(ˈsɛp təm)

n., pl. -ta (-tə).
a dividing wall, membrane, or the like, in a plant or animal structure; dissepiment.
[1710–20; < New Latin; Latin saeptum enclosure]
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References in periodicals archive ?
Neither chaeta nor parapodium is present in any segment, although clear dissepiments can be recognized.
Dissepiments 3/4-9/10 strongly thickened, that of 10/11 thin.
Propora tubulata has distinctive bands, which are expressed in the spacing of tabulae and dissepiments and in periodical thickening of skeletal elements (Pl.