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deuterium

Browse the Dictionary:: A; B; C; D; E; F; G; H; I; J; K; L; M; N; O; P; Q; R; S; T; U; V; W; X; Y; Z; #

deuterium

Main Entry: deu·te·ri·um

Pronunciation: \dü-ˈtir-ē-əm also dyü-\

Function: noun

Etymology: New Latin, from Greek deuteros second

Date: 1933

: an isotope of hydrogen that has one proton and one neutron in its nucleus and that has twice the mass of ordinary hydrogen —symbol D —called also heavy hydrogen

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