mushrooming >> ˈmʌʃruːmɪŋ
Definition: [adjective] rapidly growing, expanding, or developing.
Example: he has attacked what he describes as the culture of waste and mushrooming costs
Definition: [adjective] forming or spreading into a shape resembling that of a mushroom.
Example: the pulverized meteorite or comet would be swept high into the stratosphere by the mushrooming fireball
Definition: [noun] very rapid growth, expansion, or development.
Example: our main concern is the mushrooming of unregulated hand car wash businesses
Definition: [noun] the activity of gathering mushrooms.
Example: mushrooming makes you see and appreciate the woodland differently
Definition: [noun] the flattening and expansion of a bullet on impact.
Example: mushrooming effectively increases the bullet calibre when it is inside the target