(organic chemistry) The cracking of petroleum hydrocarbons, at high temperature in the presence of steam, in order to produce ethylene, propylene and other light alkenes

(organic chemistry) To crack using steam cracking.

simple past tense and past participle of steam-crack

cracked using steam cracking

present participle of steam-crack

(idiomatic) To smile, especially while attempting not to. / (idiomatic) To begin to smile.

A species of willow native to Europe and western Asia, Salix fragilis.

crazy; demented

(slang) An intergluteal cleft visible due to low-riding pants, especially when one is bending over.

Third-person singular simple present indicative form of crack a book