n.
Pronunciation: h ī - ' dräk-s ə l
Function: noun
Etymology: hydr- + ox- + -yl
Date: 1869
1 : the chemical group, ion, or radical OH that consists of one atom of hydrogen and one of oxygen and is neutral or negatively charged
2 : HYDROXIDE 1
– hy · drox · yl · ic \ ˌ h ī - ˌ dräk- ' si-lik \ adjective