🇺🇸
/ˈɑːr.sɪŋz/
🇺🇸
/ˈɑːr.sɪŋz/
🇬🇧
/ˈɑːrksɪŋz/
🇬🇧
/ˈɑːrksɪŋz/
Plural
arcs
Arcings refers to the visible, often hazardous electrical discharges that occur when current jumps across a gap between conductors—like tiny lightning bolts inside machinery or faulty outlets. It's not just a spark; it's superheated plasma that can melt metal, start fires, or damage electronics.
The technician shut down the system immediately after noticing dangerous arcing near the transformer.
Loose wiring in the outlet caused repeated arcing, producing a buzzing sound and a burnt odor.
High-voltage switchgear is designed to suppress arcing during circuit interruption.
Arcing was captured on thermal imaging during the electrical safety audit.
Never ignore signs of arcing—flickering lights, popping sounds, or scorch marks may indicate an imminent hazard.
arc
Comes from the Latin noun 'arcus', meaning 'bow' (as in a curved weapon or architectural structure) and later 'curve' or 'arch'. It entered English via Old French 'arc' and retains its core sense of a smooth, continuous curve. Examples include arc, arch, arcade, arctic (via Greek 'arktos', but phonetically conflated), and suborbital arc.