A similarly shaped section in a pipe, etc.
An intersection of routes where one road terminates as it joins a (usually higher priority) road at approximately 90°. In most countries, a give way or stop road sign will be seen at a T-junction.
(with plural cloverleafs or cloverleaves) A cloverleaf interchange.
The leaf of a clover plant
In the form of the leaf of a clover plant; cloverleafed.
To turn by following a cloverleaf, or as if by following one.