Topic: GEOGRAPHY
| Date: | 1500-1600 |
| Language: | Latin |
| Origin: | aestuarium, from aestus 'boiling, tide' |
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es‧tu‧a‧ry
plural estuaries [countable]
plural estuaries [countable]SG the wide part of a river where it goes into the sea :
the Thames estuary
the Thames estuary