anacoustic
[ an-uh-koo-stik ]
/ ˌæn əˈku stɪk /
adjective
of or relating to the upper portion of the earth's atmosphere and to interplanetary space, where sound cannot be transmitted because molecules are too far apart to serve as a transmitting medium.
Words nearby anacoustic
anacoluthia,
anacoluthon,
anaconda,
anacostia,
anacostia river,
anacoustic,
anacreon,
anacreontic,
anacrogynous,
anacrotic,
anacrotic pulse
British Dictionary definitions for anacoustic
anacoustic
/ (ˌænəˈkuːstɪk) /
adjective
unable to support the propagation of sound; soundless