bisexual
It means you could be bisexual.
sexually attracted
A pedophile is an adult who is sexually attracted to pre-pubertal children.
Yes, of course, Attraction denotes liking something. You can be socially attracted, and so on. You could aspire to her this could also mean you are attracted to her.
that you can maintain a relationship with both genders
They are "lesbians" which mean they like/love girls. Lesbians often have male friends they are just not attracted to men sexually.
It means condition of having attraction to an adult women.
If by "like" you mean "sexually attracted", then yes.If you just like their company, then no.In fact man-hating lesbians are not "real"(=natural) lesbians:They are lesbians because they hate/despise/fear men, not because they love women.
If someone is straight, that means they are sexually attractive to the opposite sex. Men with Women, or Women with Men. If someone is gay, that means the individual is sexually attracted to the same sex. Men with other Men, or Women with other Women.
it means that a female is sexually attracted to another female
A person who is sexually attracted to the opposite sex.
If by "how" you mean how do you know if you are indeed sexually attracted to a guy..is if you find a guy attractive. If you're asking on how you can make yourself be sexually attracted to a guy, that should come naturally, and if it doesn't it's probably best if you don't bother with that guy anyways.