Wiktionary
n. A cutting tool that has an interchangeable blade that retracts into the handle
Wikipedia
A utility knife is a knife used for general or utility purposes. The utility knife was originally a fixed blade knife with a cutting edge suitable for general work such as cutting hides and cordage, scraping hides, butchering animals, cleaning fish, and other tasks. Craft knives are tools mostly used for crafts. Today, the term "utility knife" also includes small folding or retractable-blade knives suited for use in the modern workplace or in the construction industry.
Usage examples of "utility knife".
They had taken his small utility knife but Yellowbelly had not checked his grooming tool very well.
Still holding his small utility knife, Dale strides down the hall, pausing to glance in the first room on his left and the open door to his right.
Fire ax, zero-pressure sealant canister, long utility knife, prybar, boards, first-aid kit .
I thought with longing of the utility knife, the crowbar, and hammer wrapped in plastic and wedged down in the furnace along with the weights.
The little man had bled as well, and in his right hand he clutched the utility knife from his suit, and Grysta's own hand was still against his wrist.
Instead, she chose an ordinary utility knife with a four-inch blade, small enough to fit in a pocket of her robe, large enough to do considerable damage if she had to use it.
Dennis gave Kevin the spoon and let him fumble around sloppily with the ice cream to keep him occupied while he took out his utility knife.
Ten minutes later, armed with a hammer and a utility knife, Cyrus got a fix on the location of the studs behind the wallboard.
The thing itself was about a meter high, and was mostly a stalk filled with folded-up arms and tools, almost like a gigantic utility knife, with a head that was a small translucent globe with a thin, reddish-brown band going completely around its equator.