B.
- Bigender - A person whose sense of personal identity encompasses two genders.
- Binder - A garment used mainly by trans-masculine people to compress their breasts to give the appearance of having a flat chest.
- Boy Mode - Appearing to the world as a boy or man, regardless of true gender.
- Breast Augmentation - Cosmetic procedure to increase the size of breasts with silicon implants.
- Breast Forms - Artificial breasts, mainly used by trans-feminine people, to give the appearance of having breasts.
- Breasts - Either of two milk-secreting, glandular organs on the chest.
- Butch - Having an appearance or other qualities of a type traditionally seen as masculine.
- Butchphobia - The dislike or hatred of butch women.
