What is "detumescing"

Usage examples of "detumescing".

Granted, I had a similar, if detumescing, lump of my own, but I remembered distinctly that Bancroft's limo had shielding against the street 'casts.

A dark-skinned man, big and nude and detumescing, gripping a knife and fork, unnaturally still, sitting opposite a khepri, her slight woman’s body in shadow, her chitinous head in silhouette.

Come let me show you around," she said and led the pouting and surly — and detumescing — Bill away for a sightseeing tour.

The lieutenant's helmet has a green cloth cover stretched over it, and on top of that there is dark webbing, a black net stretched taut and tense and at this moment detumescing, heart thumping evocative.