transcription, транскрипция: [ ˈsʌbˈstrɑ:təm ]
n. (pl. substrata) 1 an underlying layer or substance. 2 a layer of rock or soil beneath the surface. 3 a foundation or basis (there is a substratum of truth in it). [mod.L, past part. of L substernere (as SUB-, sternere strew): cf. STRATUM]