plural of cross-tail

A bar in a steam engine connecting the ends of the side rods or levers of a backaction or side-lever engine.

(shipbuilding) One of the temporary wooden braces, placed horizontally across a frame to hold it in position until the deck beams are in; a cross-pawl.

plural of cross-spall

plural of cross-breeding

plural of common crossing

Used other than figuratively or idiomatically: see common, crossing. / (rail transport) The part of a railway switch or turnout where the running-rails cross; a frog.

plural of cross vault

(architecture) A vault resulting from the intersection of two barrel-vaults crossing in a right angle. Its thrusts are concentrated along the groins or arrises and eventually at the four corners

plural of cross-section