plural zoos
Definition of zoo
(Entry 1 of 2)
1
: a facility with usually indoor and outdoor settings where living, typically wild animals are kept especially for public exhibition
— called also zooological garden, zoological park
2
: a place, situation, or group marked by crowding, confusion, or unrestrained behavior
The convention was a zoo.
zoo-
combining form
variants:
or before a vowel zo-
Definition of zoo- (Entry 2 of 2)
1
: animal : animal kingdom or kind
zooid zoology
2
: motile
zoospore
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Merriam-Webster unabridged
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Time Traveler for zoo
The first known use of zoo was in 1835
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