- of the Dog Star (Sirius)
- measured by its rising
- of the dog days in July and August
Origin of canicularMiddle English caniculer from Classical Latin canicularis from Canicula
- Of or relating to Sirius or Procyon, two stars in the constellation Canis Major.
- Of or relating to the dog days.
Origin of canicularLate Latin canīculāris of Sirius from Latin Canīcula Sirius diminutive of canis dog ; see kwon- in Indo-European roots.