Ethereal is also a computer program for tracing the flow of traffic over Ethernet LANS. It is a portmanteau of "Ethernet" and "real", in that it makes the invisible traffic "real" to network troubleshooters.

Religious can also be used as a noun , referring to people consecrated to the religious life, but not including priests. Religious include nuns , sisters , and monks . Priests are a separate category because only they can preside at Masses. The phrase "priests and religious" refers to all ...

"Catenary arch" ceramic kilns are also an alternative to strait-walled "sprung arch kilns". The former require careful beveling of the bricks to align them with the outline traced on a template by hanging a chain between two supports; the latter requires welded braces and horizon...

Not sure if I missed it, but "scratch" can also being a noun meaning "nothing", as in "He started from 'scratch' and built a fortune".

Oolite or oölite (egg stone) is a sedimentary rock formed from ooids, spherical grains composed of concentric layers, usually formed from calcium carbonate. They may also form from hematite, and ore of iron.

Celadon is a semi-transparent pale-green ceramic glaze that was developed in China during the Sung Dynasty (9th - 13th cent). The color is due to a small amount of iron oxide in a basic glaze fired in a "reducing" (oxide deprived) atmosphere. It is used on stoneware, but achieves maximum ...