Astrochemistry
a branch of astronomy and dealing with the chemical composition and evolution of the universe and its parts.
noun
the study of the chemistry of celestial bodies and space, esp by means of spectroscopy
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astra digital radio audio Digital Radio over satellite, compatible with analog television transmissions. Alternatively the normal TV subcarriers can be modulated by a MPEG-1 Layer-2 48 kHz 192 kbps signal. Quality is better than analog carriers and only needs half the bandwidth (analog stereo = 2 carrier, digital stereo = 1 carrier). Quality is limited […]
- Astra
to the stars through difficulties: motto of Kansas. Historical Examples For they were not the first masters of astra, nor were they the masters now. Star Born Andre Norton “Sic itur—ad astra,” she said demurely, and offered him her hand. Special Messenger Robert W. Chambers The question is: How did this strange substance get into […]
- Astrocyte
a star-shaped neuroglial cell of ectodermal origin. noun any of the star-shaped cells in the tissue supporting the brain and spinal cord (neuroglia) astrocyte as·tro·cyte (ās’trə-sīt’) n. One of the large neuroglia cells of nervous tissue. Also called astroglia, Deiters’ cell, macroglia. astrocyte (ās’trə-sīt’) A star-shaped cell, especially one of the glial cells that support […]
- Astrodynamics
the science dealing with the paths of space vehicles. noun (functioning as sing) the study of the motion of natural and artificial bodies in space astrodynamics (ās’trō-dī-nām’ĭks) The dynamics of natural and artificial bodies in outer space.
- Astrogate
to in outer space.