ectoplasm
- n (spiritualism) a substance supposed to emanate from the body of the medium during a trance
- n the outer granule-free layer of cytoplasm
ectoproct
- n sessile mossy aquatic animal having the anus of the polyp outside the crown of tentacles
ectotherm
- n an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals