Laurentian

• (Canada) IPA^(key): /ləˈɹɛnʃən/
• (UK) IPA^(key): /lɒˈɹɛnʃən/, /lɒˈɹɛnʃi.ən/

• Audio (Southern England):

  (file)

• (US) enPR: lä-rĕnʹshən, IPA^(key): /lɑˈɹɛnʃən/
• Homophones: Lawrentian, Laurencian

From Latin Laurentius (“Laurence”) + -ian, after the Saint Lawrence River. Piecewise doublet of Laurencian and Lawrentian; compare also lawrencium.

Laurentian (not comparable)

1. Relating to a Precambrian geological region in eastern Canada, or the period of its formation.
2. Relating to the Laurentian Mountains.
3. Pertaining to, or near, the Saint Lawrence River.

   In the Laurentian hills.

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

• Laurentide

Laurentian (plural Laurentians)

1. A resident of Saint Laurent.
2. A resident of the Saint Lawrence Valley.
3. A resident of the Laurentian Mountains.

Laurentian

1. An extinct Iroquoian language of Canada.
2. (geology) The Laurentian period.

• (language): St. Lawrence Iroquoian

• Ethnologue entry for Laurentian, lre ⁠

From Latin Laurentius (“Laurence”) + -ian, after the Latinized name of Lorenzo de' Medici.

Laurentian (not comparable)

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

• antineural