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 (nā′tə-tôr′ē-əl, năt′ə-) also na·ta·to·ry (nā′tə-tôr′ē, năt′ə-)
Of, relating to, adapted for, or characterized by swimming: a natatorial appendage; natatorial birds.

[From Late Latin natātōrius, from Latin natātor, swimmer, from natātus, past participle of natāre, frequentative of nāre, to swim; see snā- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌneɪ təˈtɔr i əl, -ˈtoʊr-, ˌnæt ə-)

also na′ta•to`ry,

pertaining to, adapted for, or characterized by swimming.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
As with most brachyuran crabs, the first zoeal stage of the blue crab lacks abdominal appendages, and the larvae swim via natatorial motion of two pairs of cephalic appendages (maxillipeds) and their associated setae (Fig.
Then, when Lydia has a car accident, that provides the catalyst for Henry to become less friendless, excel at his natatorial love and find out about his absent father.
The department will also hold rural poultry camps poultry, domesticated fowl kept primarily for meat and eggs; including birds of the order Galliformes, e.g., the chicken, turkey, guinea fowl, pheasant, quail, and peacock; and natatorial (swimming) birds, e.g., the duck and goose.