chalasia

[kah-la´ze-ah] 1. relaxation of a bodily opening.2. an incompetent or relaxed cardiac sphincter that permits reflux of the contents of the stomach into the esophagus. A cause of regurgitation in infants, it is considered a developmental event with no sequelae and gradual resolution.

cha·la·si·a

, chalasis (kă-lā'zē-ă, -lā'sis), Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles. [G. chalaō, to loosen]

chalasia

Pediatrics Gastroesophageal reflux (GERD) in infants which, if severe, may be associated with ↑ vomiting, crying, discomfort, possibly ↑ risk of GERD as adults. See GERD.

cha·la·sia

, chalasis (kă-lā'zē-ă, -lā'sis) Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles. [G. chalaō, to loosen]

chalasia

Abnormal relaxation or loss of retaining power, especially of the muscle ring at the lower end of the OESOPHAGUS.

单词	chalasia
释义	chalasia chalasia [kah-la´ze-ah] 1. relaxation of a bodily opening.2. an incompetent or relaxed cardiac sphincter that permits reflux of the contents of the stomach into the esophagus. A cause of regurgitation in infants, it is considered a developmental event with no sequelae and gradual resolution. cha·la·si·a , chalasis (kă-lā'zē-ă, -lā'sis), Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles. [G. chalaō, to loosen] chalasia Pediatrics Gastroesophageal reflux (GERD) in infants which, if severe, may be associated with ↑ vomiting, crying, discomfort, possibly ↑ risk of GERD as adults. See GERD. cha·la·sia , chalasis (kă-lā'zē-ă, -lā'sis) Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles. [G. chalaō, to loosen] chalasia Abnormal relaxation or loss of retaining power, especially of the muscle ring at the lower end of the OESOPHAGUS.
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