n.
Pronunciation: ' h ī -dr ə -j ə n, -d ə r-
Function: noun
Etymology: French hydrogène, from hydr- + -gène -gen; from the fact that water is generated by its combustion
Date: 1788
: a nonmetallic element that is the simplest and lightest of the elements, is normally a colorless odorless highly flammable diatomic gas, and is used especially in synthesis ― see ELEMENT table ― compare DEUTERIUM , TRITIUM
– hy · drog · e · nous \ h ī - ' drä-j ə -n ə s \ adjective