The Collins English Dictionary, a British reference, agrees with Merriam-Webster's that the verb is transitive and spelled “colocate.” But the Oxford Dictionaries website spells it “colocate” in American English and “co-locate” in British English.

Is colocation hyphenated?

Historically the correct English would have been co-location, like “co-terminus” or “co-worker” but common modern usage in the data center age prefers the simplified version of “colocation.” I'm personally not a fan of unnecessarily hyphenating words so our house style is no hyphen, i.e. “colocation,” but I would be ...

What does colocation mean?

: to locate (two or more things) together or be located together: such as. a transitive : to cause (two or more things) to be in the same place or close together They [fog signals] are usually co-located with another form of aid such as a light … —