From Longman Dictionary of Contemporary Englishdividerdi‧vid‧er /dəˈvaɪdə $ -ər/ noun [countable] 1 SEPARATEsomething that divides something else into parts a room divider alphabetical file dividers2 American English a piece of land that separates traffic travelling in opposite directions on a main road SYN reservation British English Police saw his Mercedes speeding along the center divider.3 → dividers
Examples from the Corpus
divider• A large, blue divider splits the gym at the Higgins Middle School into two basketball courts.• the center divider of the Lawrence Expressway• a set of notebook dividers• But a room divider doesn't have to be a permanent fixture, particularly if you don't have much space.• Provided the room is big enough, room divider doors are a practical solution and can be an attractive feature.• If the female gets really aggressive towards her mate he should be removed, or a tank divider installed.• If one fish attacks the other, you can replace the divider before any real injuries are incurred.• One was normal except for some wooden dividers which had been set upon its surface. 