Definition of "Laurentian"

Relating to a Precambrian geological region in eastern Canada, or the period of its formation.  examples

Relating to the Laurentian Mountains.  examples

Pertaining to, or near, the Saint Lawrence River.  examples

(by extension, nonstandard) Of or pertaining to Canada as a whole.

A resident of Saint Laurent.  examples

A resident of the Saint Lawrence Valley.  examples

A resident of the Laurentian Mountains.  examples

An extinct Iroquoian language of Canada.  examples

(geology) The Laurentian period.

Relating to Lorenzo de' Medici, or to the Laurentian Library in Florence named after him.  examples