rare. [f. as prec. + -NESS.] The quality of being amphibious; life in, or connection with, two elements.
1731. In Bailey; whence in Johnson, etc.
1805. J. Malcolm, Comp. Mod. Husb., III. 357. Can it be possible that cattle of any sort, unless they were allied to amphibiousness, should thrive in situations like these?
1839. Madison Whig Advocate (Canton, MS), 2 March, 3/2. Truly glad would we be to see ‘the new steamer Canton’ at our wharf, as she must be different from the balance of her ‘genus,’ in the quality of amphibiousness.
