
1. <physics> Pertaining to pressure of ambient gases below 1 atmosphere. ... 2. <chemistry> With respect to solutions, less dense than the diluent or medium; e.g., in spinal anaesthesia, a hypobaric solution has a density lower than that of spinal fluid. ... Origin: hypo-+ G. Baros, weight ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973

(hi″po-bar´ik) characterized by less than normal pressure or weight; applied to gases under less than atmospheric pressure, or to solutions of lower specific gravity than another taken as a standard of reference.
Found on
http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: hī′pō-bar′ik Definitions: 1. Pertaining to pressure of ambient gases below one atmosphere. 2. With respect to solutions, less dense than the diluent or medium; in spinal anesthesia, a hypobaric solution has a density lower than that of spinal fluid.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=42778

Pertaining to low atmospheric pressure, particularly the low atmospheric pressure of high altitudes.
Found on
https://www.encyclo.co.uk/local/20687

(of an anesthetic) having a specific gravity lower than that of cerebrospinal fluid. Cf. hyperbaric (def. 1).
Found on
https://www.infoplease.com/dictionary/hypobaric
No exact match found.