SYN: pleural effusion.
- chylous h. SYN: chylothorax.
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hy·dro·tho·rax -'thō(ə)r-.aks, -'thȯ(ə)r- n, pl -tho·rax·es or -tho·ra·ces -'thōr-ə-.sēz, -'thȯr- an excess of serous fluid in the pleural cavity esp an effusion resulting from failing circulation (as in heart disease or from lung infection)
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n.
fluid in the pleural cavity. See also hydropneumothorax.
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hy·dro·tho·rax (hi″dro-thorґaks) [hydro- + thorax] a pleural effusion containing serous fluid. See also pleurisy with effusion.Medical dictionary. 2011.