Purlingadjective
That purls; rippling, eddying.
Purlingnoun
The motion of a small stream among obstructions; flowing with a murmuring sound.
Purlingnoun
The motion of a small stream running among obstructions; also, the murmur it makes in so doing.
Purlinnoun
A longitudinal structural member bridging two or more rafters of a roof.
Purlinnoun
In root construction, a horizontal member supported on the principals and supporting the common rafters.
Purlin
A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof. In traditional timber framing there are three basic types of purlin: purlin plate, principal purlin, and common purlin.