Definify.com

Webster 1913 Edition

Adj.

[From

Capable of being immersed.

Adj.

[Pref.

im-

not + L.

mersus

, p. p. of

mergere

to plunge.]

Not capable of being immersed.

immersible ‎(comparative more immersible, superlative most immersible)

Not susceptible to harm if immersed in water.
A waterproof camera is by definition immersible.