Са енглеске википедије:
After this they can be categorized as:
Displacement
the hull is supported exclusively or predominantly by buoyancy. They travel through the water at a limited rate which is defined by the waterline length. They are often heavier than planing types, though not always.
http://en.wikipedia.org/wiki/Hull_(watercraft)

примјер употребе:
http://www.inet.hr/~antuivan/poludeplasmanci.html

U ponudi će se uskoro naći i gliser od 7,60 kao i poludeplasmanska jahta od 11,80m.
http://khepri-mne.com/o_nama.html