positive electron n.
- Positive end-expiratory pressure
positive end-expiratory pressure n. Abbr. PEEP A technique used in respiratory therapy in which pressure is maintained in the airway so that the lungs empty less completely in expiration.
noun 1. See under . [yoo-jen-iks] /yuˈdʒɛn ɪks/ noun, (used with a singular verb) 1. the study of or belief in the possibility of improving the qualities of the human species or a human population, especially by such means as discouraging reproduction by persons having genetic defects or presumed to have inheritable undesirable traits (negative […]
noun, Electronics. 1. See under (def 1). [feed-bak] /ˈfidˌbæk/ noun 1. Electronics. 2. the furnishing of data concerning the operation or output of a machine to an automatic control device or to the machine itself, so that subsequent or ongoing operations of the machine can be altered or corrected. 3. a reaction or response to […]
[pawr-tuh ree-koh, pohr-] /ˈpɔr tə ˈri koʊ, ˈpoʊr-/ noun 1. former official name (until 1932) of . /ˈpɔːtə ˈriːkəʊ/ noun 1. the former name (until 1932) of Puerto Rico