A powdered substance is one that is in the form of a powder although it can come in a different form. 粉状的
adjective [原级] 变成粉末的;涂粉的
There are only two boxes of powdered milk left. 只剩两盒奶粉了。
verb [vt. 及物动词] 使成粉末(powder 的过去分词);撒粉;搽粉
She powdered her face and put on her lipstick. 她往脸上搽了粉,又涂上了口红。