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hy·drox·yl hī-'dräk-səl n
1) the chemical group or ion OH that consists of one atom of hydrogen and one of oxygen and is neutral or positively charged
2) HYDROXIDE (1)
hy·drox·yl·ic .hī-.dräk-'sil-ik adj
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hy·drox·yl (hi-drokґsəl) the univalent radical OH.Medical dictionary. 2011.