Magnetic flux density
the magnetic field produced in a substance by an external magnetic field.
Magnetic induction
See Magnetic Flux Density
Major histocompatibility antigen
A cell-surface macromolecule that allows the immune system to distinguish foreign or “non-self” from “self”. A better term is histoglobulin (See histocompatibility antigen). These are the antigens that must be matched between donors and recipients during organ and tissue transplants to prevent rejection.


