nitrogen dilator

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nitric oxide — A colorless, radical free gas that reacts rapidly with O2 to form other nitrogen oxides (e.g., NO2, N2O3, and N2O4) and ultimately is converted to nitrite (NO2−) and nitrate (NO3−); a gaseous mediator of cell to cell communication and … Medical dictionary
Control of respiration — Control of ventilation refers to the physiological mechanisms involved in the control of physiologic ventilation. Gas exchange primarily controls the rate of respiration. The most important function of breathing is gas exchange (of oxygen and… … Wikipedia
crustacean — /kru stay sheuhn/, n. 1. any chiefly aquatic arthropod of the class Crustacea, typically having the body covered with a hard shell or crust, including the lobsters, shrimps, crabs, barnacles, and wood lice. adj. 2. belonging or pertaining to the… … Universalium
heteropteran — ▪ insect order Introduction any member of the insect order Heteroptera, which comprises the so called true bugs. (Some authorities use the name Hemiptera; others consider both the heteropterans and the homopterans to be suborders of the… … Universalium
Glossary of entomology terms — Parts of an adult butterfly This glossary describes the terms used in the formal descriptions of insect species, jargon used mostly by professionals or entomologist. Contents … Wikipedia

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