ice floe
noun
1.
a large flat mass of floating ice.
2.
floe
(def 1).
Origin
1810-20
British Dictionary definitions for
ice floe
ice floe
noun
1.
a sheet of ice, of variable size, floating in the sea
See also
ice field
(sense 1)
ice floe
in Science
ice floe
A large, flat expanse of floating ice smaller than a marine ice field.