Le mot anglais pour champignon est
mushroom

Définition en anglais

champignon
1. n-m. mushroom
des champignons hallucinogènes - hallucinogenic mushroom, magic mushroom
2. n-m. fungus in general
3. n-m. fungal infection
avoir des champignons
4. n-m. (informal) accelerator pedal
appuyer sur le champignon - to step on it, to floor it, to put the pedal to the metal, to put one's foot down, to step on the gas
le pied sur le champignon
champignon au plancher

mushroom	©
1. n. (Botanique) Champignon (Végétal sans feuille ni fleur, généralement constitué d'un mycélium souterrain et d'une partie aérienne, le carpophore : un pied et un chapeau. ).
When picking mushrooms to eat, it's important to recognize which mushrooms are poisonous.
2. adj. Qui contient ou fabriqué avec des champignons.
Mushroom soup.
3. adj. Qui a l'apparence d'un champignon.
Mushroom cloud.
4. v. Pousser comme des champignons, augmenter rapidement
The town's population mushroomed from 10,000 to 110,000 in five years.
5. v. Proliférer, multiplier, apparaître un peu partout.
6. v. Champignonner, cueillir des champignons.

mushroom	©
1. n. Any of the fleshy fruiting bodies of fungi typically produced above ground on soil or on their food sources (such as decaying wood).
Some mushrooms are edible and taste good, while others are poisonous and taste foul.
2. n. A fungus producing such fruiting bodies.
3. n. Champignon or Agaricus bisporus, the mushroom species most commonly used in cooking.
4. n. One of the mushroom-shaped pegs in bar billiards.
5. n. (obsolete, figurative) One who rises suddenly from a low condition in life; an upstart.
6. n. (figurative) Something that grows very quickly or seems to appear suddenly.
7. adj. Having characteristics like those of a mushroom, for example in shape or appearance, speed of growth, or texture.
mushroom cloud
8. v. (intransitive) To grow quickly to a large size.
The town’s population mushroomed from 10,000 to 110,000 in five years.
9. v. To gather mushrooms.
We used to go mushrooming in the forest every weekend.
10. v. (ballistics, of a bullet) To form the shape of a mushroom when striking a soft target.