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helium
helium
noun
) a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
(
atomic number 2, He, helium )a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
scientific agriculture
scientific agriculture
noun
(
agronomy, scientific agriculture )the application of soil and plant sciences to land management and crop production
cartridge clip
cartridge clip
noun
(
cartridge clip, cartridge holder, magazine, clip )a metal frame or container holding cartridges; can be inserted into an automatic gun
wide-angle lens
wide-angle lens
noun
(
fisheye lens, wide-angle lens )a camera lens having a wider than normal angle of view (and usually a short focal length); produces an image that is foreshortened in the center and increasingly distorted in the periphery
