19-letter words containing r, o, c, k, a
- trickle bed reactor — A trickle bed reactor is a reactor in which gravity makes a gas and a liquid flow through a bed of catalyst.
- tricks of the trade — expert techniques
- tussock caterpillar — the larva of a tussock moth.
- vacuum coffee maker — a coffee pot with upper and lower glass units, the upper for ground coffee and the lower for water that, when boiled, rises through the filter-stoppered bottom of the upper unit and remains there until drawn back down to the lower unit as brewed coffee by a reduction in pressure caused by the removal of heat.
- white-collar worker — office employee, clerical worker
- within rocket range — able to be reached by rockets
- zero and add packed — (language) (ZAP) An IBM 360/370 assembly language instruction used when performing packed arithmatic to initialise an accumulator.