1.
~ is used after nouns such as ‘bullet’ and ‘fire’ to form adjectives which indicate that something has been damaged or marked by the thing mentioned.
...a bullet~ bus.
...a lightning~ tree.
COMB in ADJ: ADJ n
2.
~ is used after nouns such as ‘battle’ or ‘drug’ to form adjectives which indicate that the thing mentioned has had a permanent effect on someone’s mind.
...battle~ soldiers.
COMB in ADJ: usu ADJ n
3.
see also scar