A transwoman (sometimes spelled as trans-woman or trans woman) is a male-to-female (MTF) transsexual or transgender person. Many people in this group like the name trans woman over the many medical terms that are out there.
Definition of experiment for English Language Learners. : 1  a scientific test in which you perform a series of actions and carefully observe their effects in order to learn about something. : 2  something that is done as a test : something that you do to see how well or how badly it works.
Animal research redirects here. For other uses, see Animal studies (disambiguation). Animal testing, also known as animal experimentation, animal research and in vivo testing, is the use of non-human animals in experiments that seek to control the variables that affect the behavior or biological system under study.