- air cavities
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English-Bulgarian polytechnical dictionary . 2013.
air cavities
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air sac — n ALVEOLUS (b) * * * 1. in birds, one of the air filled cavities connected with the air passages of the lungs and usually with cavities in the bones; they assist in respiration and lower the body s specific gravity. Domestic fowl have one or two… … Medical dictionary
Air jacket — Air jack et A jacket having air tight cells, or cavities which can be filled with air, to render persons buoyant in swimming. [1913 Webster] … The Collaborative International Dictionary of English
air-jacket — airˈ jacket noun 1. A casing containing air to reduce loss or gain of heat 2. A garment with airtight cavities to buoy up in water • • • Main Entry: ↑air … Useful english dictionary
air sac — n. any of the air filled cavities in a bird s body, having connections to the lungs … English World dictionary
air sac — air′ sac n. 1) anat. alveolus 2) 2) orn any of certain cavities in a bird s body connected with the lungs • Etymology: 1820–30 … From formal English to slang
air sac — noun 1. a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways • Syn: ↑alveolus, ↑air cell • Derivationally related forms: ↑alveolate (for: ↑alveolus) • Hypernyms … Useful english dictionary
air pollution — /ˈɛə pəluʃən/ (say air puhloohshuhn) noun the contamination of the air by substances such as chemical fumes, particulate matter, gases, etc. The major source of air pollution in Australia is the motor vehicle whose exhausts cause chemicals such… …
air sac — 1. a sac containing air. 2. alveolus (def. 2). 3. any of certain cavities in a bird s body connected with the lungs. 4. a saclike dilation of the wall of a trachea in many insects. [1820 30] * * * ▪ anatomy any of the air filled extensions… … Universalium
air sac — /ˈɛə sæk/ (say air sak) noun 1. a sac containing air. 2. any of certain cavities in a bird s body connected with the lungs. 3. a saclike dilatation of an insect trachea …
tension cavities — cavities of the lung in which the air pressure is greater than that of the atmosphere, as in tension pneumothorax. Radiologically, they appear as large, spherical, thin walled defects indicative of productive inflammatory reaction in the bronchus … Medical dictionary
Indoor air quality — (IAQ) is a term referring to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. IAQ can be affected by microbial contaminants (mold, bacteria), gases (including… … Wikipedia
