ga·lac·to·si·dase 
(gə-lăktō-sĭ-dās′, -dāz′, -lăk-tō-)
(gə-lăktō-sĭ-dās′, -dāz′, -lăk-tō-)n.
An enzyme that catalyzes the hydrolysis of a galactoside.
- extern
- external
- external auditory canal
- external capsule
- external-combustion engine
- external ear
- externalism
- externalist
- externality
- externalization
- externalize
- externally
- external phase
- external respiration
- externe
- externship
- exteroceptive
- exteroceptor
- exterritorial
- exterritoriality
- exterritorially
- extinct
- extinction
- extinctive
- extinguish