Any process that activates or increases the frequency, rate or extent of actin filament severing.
Synonyms:
exact_synonym:
positive regulation of F-actin severing; up regulation of F-actin severing; up regulation of actin filament severing; upregulation of F-actin severing; upregulation of actin filament severing
narrow_synonym:
activation of F-actin severing; activation of actin filament severing
related_synonym:
activation of actin filament severing activity; activation of barbed-end actin capping/severing activity; positive regulation of actin filament severing activity; positive regulation of barbed-end actin capping/severing activity; up regulation of actin filament severing activity; up regulation of barbed-end actin capping/severing activity; upregulation of actin filament severing activity; upregulation of barbed-end actin capping/severing activity