radial artery noun

The smaller branch of the brachial artery at the elbow

radial drill noun (engineering)

A large drilling machine in which the drilling head is capable of radial movement along a horizontal arm, which is itself adjustable in angle

radial engine noun

One with its cylinders radially arranged (as opposed to in line)

radial keratotomy noun

Eye surgery involving cuts around the cornea

radial-ply tyre noun

A tyre in which layers or plies of fabric in the carcass are wrapped in a direction radial to the centre of the wheel

radial symmetry noun

Symmetry about several planes intersecting in a common axis

radial tyre noun

A radial-ply tyre

radial velocity noun

The speed of motion along the observer's line of sight, esp to or from a star