noun
plural -rals
[count] a circular curving line that goes around a central point while getting closer to or farther away from it
a situation in which something continuously increases, decreases, or gets worse - usually singular
American football :a kick or throw in which the ball spins while moving through the air
verb
-rals; US -raled or Brit -ralled; US -raling or Brit -ralling
[no obj]
always followed by an adverb or preposition :to move in a circle around a central point while getting closer to or farther away from it :to move in a spiral
to greatly increase, decrease, or get worse in a continuous and usually fast and uncontrolled way
adjective
always used before a noun
winding or circling around a central point and usually getting closer to or farther away from it :shaped or moving like a spiral