from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of a group of enzymes that catalyze the formation of double bonds by removing chemical groups from a substrate without hydrolysis or catalyze the addition of chemical groups to double bonds.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biochemistry Any of many classes of
enzymethat catalyze the breaking of a specific form of bond
from The American Heritage® Dictionary of the English Language, 4th Edition
[Greek lūein, to loosen; see leu- in Indo-European roots + –ase.]
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