ゴボウ剣
also: ごぼうけん
Meanings
1
colloquialarchaic
Colloquial, archaic term for a bayonet, literally 'burdock sword', likely from the shape or from soldiers' slang. Modern term is 銃剣.
See also: 銃剣
Soldiers in the old days fought with bayonets fixed to their rifles.
'Gobōken' is an old term that is hardly used nowadays.