con ‧ di ‧ tion ‧ er /kənˈdɪʃ ə nə $ -ər/ BrE AmE noun [uncountable and countable]
[ Word Family: noun : ↑ condition , ↑ precondition , ↑ conditioner , ↑ conditioning ; verb : ↑ condition ; adverb : ↑ conditionally ≠ ↑ unconditionally ; adjective : ↑ conditional ≠ ↑ unconditional ]
1 . a liquid that you put onto your hair after washing it to make it softer
2 . British English a liquid that you wash clothes in to make them softer SYN softener American English