Deject in a sentence as a verb

Their dejections fertilize the phytoplankton which lives near the surface.

Whales play a crucial part in natural iron fertilization of oceans, because they go deep underwater to eat a large amount of krill, which are iron-rich, and deject near the surface, because they need to breathe.

Deject definitions

verb

lower someone's spirits; make downhearted; "These news depressed her"; "The bad state of her child's health demoralizes her"

See also: depress dismay dispirit demoralize demoralise