hydrogen

Save
hydrogen /ˈhaɪdrəʤən/ noun
hydrogen
/ˈhaɪdrəʤən/
noun
Learner's definition of HYDROGEN
[noncount]
: a chemical element that has no color or smell and that is the simplest, lightest, and most common element
Comments & Questions
Comments & Questions
What made you want to look up hydrogen? Include any comments and questions you have about this word.
LEARNER'S WORD OF THE DAY
By heart Illustration