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aquarist

[uh-kwair-ist]
noun
  1. a curator, collector, or ichthyologist associated with an aquarium.

Origin of aquarist

First recorded in 1890–95; aquar(ium) + -ist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for aquarist

aquarist

noun
  1. the curator of an aquarium
  2. a person who studies aquatic life
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012