When I look up the Japanese definition (at dictionary.goo.ne.jp) of the word 好き嫌い, this is the definition that gets shown: 好きなことと、嫌いなこと。また、えりごのみ。
I can't figure out if 好きなことと、嫌いなこと。is a separate definition than また、えりごのみ。or if they make up the definition together?
I see the usage of また like this in a lot of Japanese definitions and I suspect that it makes up the definition with the sentence that came before it. However I can't figure out what また would mean in that case.
Thus my questions are:
Are those two sentences two seperate definitions or are they one definition?
And what does また mean if it is used in this way?