1spi·ral 
/ˈspaɪrəl/ noun
plural spi·rals /ˈspaɪrəl/ noun [count] 1 : a circular curving line that goes around a central point while getting closer to or farther away from it
▪ The glider flew in a wide spiral over the field. 2 : a situation in which something continuously increases, decreases, or gets worse — usually singular ▪ an inflationary spiral [=a continuous increase in prices] ▪ a spiral of problems ▪ Gas prices continued their dizzying upward spiral. [=gas prices got higher] ▪ His drug use drove him into a downward spiral. [=his condition became worse and worse] 3 American football : a kick or throw in which the ball spins while moving through the air
▪ The quarterback threw a tight spiral to the receiver.
▪ The glider flew in a wide spiral over the field.
▪ The quarterback threw a tight spiral to the receiver.
