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There are 9 twelve-letter words beginning with HYDROGE

HYDROGENASES	• hydrogenases n. Plural of hydrogenase. • HYDROGENASE n. an enzyme that catalyzes hydrogen formation in certain microorganisms.
HYDROGENATED	• hydrogenated v. Simple past tense and past participle of hydrogenate. • hydrogenated adj. That has been treated, or reacted with hydrogen; especially describing a saturated fat so obtained from… • HYDROGENATE v. to combine or treat with hydrogen.
HYDROGENATES	• hydrogenates v. Third-person singular simple present indicative form of hydrogenate. • HYDROGENATE v. to combine or treat with hydrogen.
HYDROGENATOR	• hydrogenator n. (Chemistry) A device that hydrogenates. • HYDROGENATOR n. an agent that hydrogenates.
HYDROGENISED	• hydrogenised v. Simple past tense and past participle of hydrogenise. • HYDROGENISE v. to hydrogenate, also HYDROGENIZE.
HYDROGENISES	• hydrogenises v. Third-person singular simple present indicative form of hydrogenise. • HYDROGENISE v. to hydrogenate, also HYDROGENIZE.
HYDROGENIZED	• hydrogenized v. Simple past tense and past participle of hydrogenize. • HYDROGENIZE v. to hydrogenate, also HYDROGENISE.
HYDROGENIZES	• hydrogenizes v. Third-person singular simple present indicative form of hydrogenize. • HYDROGENIZE v. to hydrogenate, also HYDROGENISE.
HYDROGEOLOGY	• hydrogeology n. The geology of groundwater, especially concerning the physical, biological and chemical properties of… • HYDROGEOLOGY n. the study of the geological action of water.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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English Wiktionary: 21 words
Scrabble in French: 7 words
Scrabble in Spanish: no word
Scrabble in Italian: no word
Scrabble in German: no word
Scrabble in Romanian: no word

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