† coˌllachryˈmationObs.rare. [n. of action, f. as prec.: see -ation.] Weeping together. 1623Cockeram, Collachrimation, a weeping with.a1693Urquhart Rabelais iii. xlviii, The Collachrymation of the Romans and their confederates at the Decease of Germanicus Drusus.