something which breaks down petroleum into simpler molecules
hydrocracker in American English
(ˈhaidrəˌkrækər)
noun
a high-pressure processing unit used for hydrocracking
Word origin
[1960–65; hydrocrack(ing) + -er1]This word is first recorded in the period 1960–65. Other words that entered Englishat around the same time include: bicycle kick, pop art, power play, proxemics, tag question-er is a suffix used in forming nouns designating persons from the object of their occupationor labor (hatter; tiler; tinner; moonshiner), or from their place of origin or abode (Icelander; southerner; villager), or designating either persons or things from some special characteristic or circumstance(six-footer; three-master; teetotaler; fiver; tenner)