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The Collaborative International Dictionary
Apneumatic

Apneumatic \Ap`neu*mat"ic\, a. [Gr. ? not blown through.] (Med.) Devoid of air; free from air; as, an apneumatic lung; also, effected by or with exclusion of air; as, an apneumatic operation. [Webster 1913 Suppl.] ||

Wiktionary
apneumatic

a. 1 (context medicine English) Devoid of air; free from air, or effected by or with exclusion of air. 2 (context rare English) Of or pertaining to the nonexistence of soul or spirit; non-spiritual.