English Explanatory Dictionary

anacoustic

English dictionary entry

Meanings

adj
  1. anechoic, soundless
  2. Describing the upper reaches of the atmosphere, and of space, in which the concentration of molecules is too small to support the propagation of sound

Word forms

anacoustic more anacoustic most anacoustic

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ᾰ̓- (ă-) Ancient Greek ἀν- (an-)der. English an- Proto-Indo-European *h₂eḱ- Proto-Indo-European *h₂ew- Proto-Indo-European *-s Proto-Indo-European *h₂ṓws Proto-Indo-European *-yéti Proto-Indo-European *h₂ḱh₂owsyéti Proto-Hellenic *akóuhō Ancient Greek ἀκούω (akoúō) Ancient Greek -ῐκός (-ĭkós) Ancient Greek ᾰ̓κουστῐκός (ăkoustĭkós)bor. Medieval Latin acousticusbor. English acoustic English anacoustic From an- + acoustic.

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