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lycopodium
lycopodophyte
lycopsid
Lycra
lyddite
Lydia
Lydian mode
lye
Lyele
lygus bug
lying (1)
lying (2)
lying-in
lyke-wake
Lyme disease
lyme grass
Lyme Regis
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lyase
ly·ase [ l àyss, l àyz ] (plural ly·ases)


noun 
Definition:
 
enzyme: an enzyme that catalyzes either the formation of a double bond, or the addition of a chemical group at a double bond
[Mid-20th century. < Greek luein "loosen"]
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