Wiktionary
gas tank
n. (context US English) A fuel tank for gasoline built into equipment, especially vehicles.
WordNet
gas tank
n. a tank for holding gasoline to supply a vehicle [syn: gasoline tank]
Usage examples of "gas tank".
His head was down, but he could feel the heat blast when the machine-gun tracers ignited the spare gas tank on the back of the truck.
What the fuck, we don't even have enough cash to fill this hog's gas tank.
Like putting the gas tank inside the doors of the BTR armored personnel carrier.
Bullets whined and sparked off metal, and further down the line a gas tank was hit and exploded, lighting up the battleground with a hellish glare.
Maybe if the blast went up into the gas tank, the captain thought.