You searched for: “ducts
A unit related to: “ducts
(Latin: a vessel or vessels; including, tubes, ducts, or canals that convey and circulate fluids; such as, blood, lymph, or sap, through the bodies of animals or plants)
Word Entries containing the term: “ducts
atmospheric duct (s) (noun), atmospheric ducts (pl)
1. In geophysics, a layer of the troposphere in which refractive properties are such as to trap a large proportion of certain high frequency radiations.
2. A stratum of the troposphere within which the refractive index varies so as to confine within he limits of the stratum the propagation of an abnormally large proportion of any radiation of sufficiently high frequency, as in a mirage.

Atmospheric ducting is a mode of propagation of electromagnetic radiation, usually in the lower layers of the earth’s atmosphere, where the waves are bent by atmospheric refraction.

This entry is located in the following units: atmo-, atm- + (page 3) sphero-, spher-, -sphere- (page 3)