What is "penumbral"

Usage examples of "penumbral".

A wall of sharp minds, brought to welded purpose, eclipsed the webbed traceries of rocks and plants under a stain of penumbral shadow.

A fine damp mist had settled at the end of the crescent, causing penumbral light-cones to form around the streetlamps.

Like columns of dust, countless pillars of unexcavated earth rose up, supporting a dirt sky, which hung low over the penumbral hamlet.

Crescentville shared with the entire eastern seaboard the penumbral shadows of the great mother planet.

A wish to run through the white wilderness gradually left him, erased by the penumbral majesty of the Holies.

Something circular and penumbral, darker than the interstellar night, cut an arc out of the dusting of unwinking stars.

He paused in the penumbral area between the lights and checked things over before coming any closer.

Then some pin-eyed Jeltick scholar spotted a note at the end, buried in the appendices in a crude but related slang-language, obviously added later, but not much later, that basically said the whole thing had been written during the Long Crossing of the Second Ship, by an Outcast Dweller skilled in the Penumbral language, and that, yes, of course there was a Dweller List, they - the ship, or its crew - had the key to it, and it would be included in Volume Two or Three of this epic poem.

Indeed, the rest of the world seemed drab and inert by contrast, a faded reflection of this bright image, forming a gray penumbral zone like some half-abandoned purgatory.

The black spot was at the center of the visible disk, which now showed several dark umbral regions surrounded by gray penumbrals.