"Semi" means "to some extent or degree", and "permeable" means "allowing material to pass through." Combine those two meanings, and you have the definition of semipermeable.
The phrase that explains "semipermeable" is "allows some material to pass through" or "is partially able to allow material to pass through." Hope this helps!
"Semi" means "to some extent or degree", and "permeable" means "allowing material to pass through." Combine those two meanings, and you have the definition of semipermeable.
