transcription, транскрипция: [ ˈtha-lē-əm ]
noun
Etymology: New Latin, from Greek thallos green shoot; from the bright green line in its spectrum
Date: 1861
: a soft poisonous metallic element that resembles lead in physical properties, occurs sparsely in a number of common ores, and is used chiefly in the form of compounds especially in photosensitive devices and formerly as a pesticide — see element table