transverse

Situated or lying across; crosswise.

Something, such as a part or beam, that is transverse.

In mathematics, a transverse axis.

Crosswise; across; transversely.

Lying or being across or in a cross direction; cross; thwart.

Collateral.

In anatomy and zoology, broader or wider than long; having its major diameter crosswise: noting various parts or organs which lie or are taken to run across other parts, or especially across the long axis of the whole body. See transversalis and transversus.

In botany:

Right and left or collateral with reference to the median plane.

Being at right angles to the axial direction: for example, see transverse partition, below.