Natatorial is a related term of natatorious.
As adjectives the difference between natatorial and natatorious
is that natatorial is of or pertaining to swimming while natatorious is (zoology) adapted for swimming, as the legs of certain insects are.
natatorial
English
Adjective
(-)
Of or pertaining to swimming.
natatorious
English
Adjective
(-)
(zoology) Adapted for swimming, as the legs of certain insects are.