present participle of cross wires

The simultaneous injection of a sample and, typically, a reagent

present participle of cross that bridge when one comes to it

plural of flat crossing

(rail transport, UK) A crossing where two railway lines cross each other on the same level.

(rail transport) Synonym of scissors crossover.

plural of scissors crossing

present participle of cross someone's palm

present participle of cross someone's T

plural of train crossing