adj. 1.of speech sounds 2.not using the voice 3.uttered without voice 4.being voiceless through injury or illness and thus incapable of all but whispered speech
Element
Element : promethium Symbol : pm Atomic no. : 61 Melting Point (deg c) : 1042 Boiling Point (deg c) : 3000 Discoverer : marinsky et al. (1945) .. More >>