Freebase(0.00 / 0 votes)Rate this definition: Displacement. In fluid mechanics, displacement occurs when an object is immersed in a fluid, pushing it out of the way and taking its place. The volume of the fluid displaced can then be measured, and from this the volume of the immersed object can be deduced.
The ideal height for an English Cocker Spaniel dog is between 39 cm and 41 cm; (15-16) and for the bitch, it should be between 38 cm and 39 cm (15-15.5) tall.
American cockroach are an average length of around 4 cm (1.6 in) and about 7 mm (0.28 in) tall. They are reddish brown and have a yellowish margin on the body region behind the head. Immature cockroaches resemble adults except they are wingless.