hydrogen

12 ENTRIES FOUND:

hy·dro·gen

noun \ˈhī-drə-jən\

Definition of HYDROGEN

: a nonmetallic element that is the simplest and lightest of the elements and that is normally a colorless odorless highly flammable diatomic gas—symbol H; see deuterium, tritium; element table
hy·drog·e·nous \hī-ˈdräj-ə-nəs\ adjective

Seen & Heard

What made you want to look up hydrogen? Please tell us where you read or heard it (including the quote, if possible).