hydr-


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hydr-

pref.
Variant of hydro-.

hydr-

combining form
a variant of hydro-

hydr-1

,
var. of hydro- 1 before a vowel(hydrangea), used also as a base to which suffixes beginning in a vowel are added (hydrant).

hydr-2

,
var. of hydro- 2 before a vowel(hydrazine), used also as a base to which suffixes beginning with a vowel are added ( hydride).