■ noun
1》 an area distinguished on the basis of a particular characteristic, use, restriction, etc.
↘(also time ~ ) a range of longitudes where a common standard time is used.
2》 chiefly Botany & Zoology an encircling band or stripe of distinctive colour, texture, etc.
3》 archaic a belt or girdle.
■ verb
1》 divide into or assign to ~s.
2》 archaic encircle as or with a band or stripe.
3》 ( ~ out ) N. Amer. informal fall asleep or lose concentration.
Derivatives
zonal adjective
zonally adverb
Origin
ME: from Fr., or from L. zona 'girdle', from Gk zōnē .