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n. pl. en·ta·ses (-sēz′)
A slight convexity or swelling, as in the shaft of a column, conventionally employed especially in classical architecture.

[Latin, from Greek, tension, from enteinein, to stretch tight : en-, intensive pref.; see en-2 + teinein, to stretch; see ten- in Indo-European roots.]


n, pl -ses (-siːz)
1. (Architecture) a slightly convex curve given to the shaft of a column, pier, or similar structure, to correct the illusion of concavity produced by a straight shaft
2. (Physiology) physiol Also called: entasia an involuntary or spasmodic muscular contraction
[C18: from Greek, from enteinein to stretch tight, from teinein to stretch]


(ˈɛn tə sɪs)

a slight convexity given to a column or tower to correct the optical illusion of concavity produced by straight sides.
[1745–55; < Greek, =enta- (variant s. of enteínein to stretch tight =en- en-2 + teínein to stretch) + -sis -sis]


the slight convexity or outward curve given to a tower or other tall, narrow structure.
See also: Architecture
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.entasis - a slight convexity in the shaft of a columnentasis - a slight convexity in the shaft of a column; compensates for the illusion of concavity that viewers experience when the sides are perfectly straight
pillar, column - (architecture) a tall vertical cylindrical structure standing upright and used to support a structure
convex shape, convexity - a shape that curves or bulges outward