capable of being split or separated into parts.
The large chocolate cake was divisible into twelve equal slices for the party.
The inheritance was divisible equally among the five children.
✦ From Late Middle English, borrowed from Late Latin dīvīsibilis ('divisible'), equivalent to Latin dīsus ('divided') + -ibilis, where dīsus is the perfect passive participle of dīvidō ('to divide, to separate').
of a whole number, such that when divided by a specific divisor, leaves no remainder.
Fifteen is divisible by three because 15 ÷ 3 = 5.
Nine is not divisible by two since there's a remainder.