ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ In vitro
Definition:
In an artificial environment outside a living organism or body. For example,
some toxicity testing is done on cell cultures or slices of tissue grown in the
laboratory, rather than on a living animal.
Source:
ATSDR
Glossary of Terms 
ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ | 
