mushroom-v; 3 Senses

Sense Number 1: grow and spread quickly

Commentary: NP[+patient,+attribute] MUSHROOM[-transitive]

Examples:
The small gap that 5 riders had held from an early move quickly mushroomed to 45 seconds in the adverse weather.
I was surprised by how the idea mushroomed from a single story into a large project.
The Internet has introduced a rise in online relationships in India and dating websites have mushroomed.

Mappings:
VerbNet: calibratable_cos-45.6-1
FrameNet: Change_position_on_a_scale
PropBank: mushroom.01
WordNet 3.0 Sense Numbers: 2

Sense Number 2: (transitive, technical usage--see commentary)

Commentary: Many examples of this usage have been found, but I can't find the actual definition. Please examine examples carefully, and tag appropriately. (if there are any taggers familiar with this term, please contact us!)

Examples:
It had mushroomed the skirt of the cylinder.
The drum hasn't popped but you've mushroomed the axle shaft end.
This tool is so powerful that one fellow mushroomed the fat end of a cotter.
I mushroomed the putty on both sides of the fiberglass a little.
I pressed the link plate on, then mushroomed the link pins with a hammer.

Mappings:
VerbNet: NM
FrameNet: NM
PropBank: NM

Sense Number 3: pick or gather mushrooms

Examples:
We went mushrooming in the Fall.

Mappings:
VerbNet: berry-13.7
FrameNet: NM
PropBank: NM
WordNet 3.0 Sense Numbers: 1