No one knows the exact cause of psoriasis, but experts believe that itâs a combination of things. Something wrong with the immune system causes inflammation, triggering new skin cells to form too quickly. Normally, skin cells are replaced every 10 to 30 days. With psoriasis, new cells grow every 3 to 4 days. The buildup of old cells being replaced by new ones creates those silver scales.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  abyss(Noun) A bottomless or unfathomed depth, gulf, or chasm; hence, any deep, immeasurable. 2  abyss(Noun) Hell; the bottomless pit; primeval chaos. 3  abyss(Noun) Infinite time; a vast intellectual or moral depth. 4  abyss(Noun) The center of an escutcheon.
an immeasurable depth or space looking down at the dark ocean from the ship's rail, the cruise passenger felt as though he was staring into an abyss Synonyms abysm, chasm, deep, gulf, ocean Related Words cleft, crevasse, crevice, fissure; cavern, hole, hollow, pit; breadth, expanse, extent, reach, spread, stretch; black hole, emptiness, nothingness ...