Definition of spiralling in English:
spiralling
(US spiraling)
adjectiveˈspʌɪrəlɪŋˈspaɪrəlɪŋ
1Having or forming a spiral shape.
the office's most eye-catching feature is the grand spiralling staircase
2Showing a continuous and dramatic increase.
spiralling property prices are making the city increasingly unattractive
he needed to relax after the spiralling tensions of the day
Definition of spiraling in US English:
spiraling
(British spiralling)
adjectiveˈspaɪrəlɪŋˈspīrəliNG
1Having or forming a spiral shape.
the office's most eye-catching feature is the grand spiraling staircase
2Showing a continuous and dramatic increase.
spiraling property prices are making the city increasingly unattractive
he needed to relax after the spiraling tensions of the day