15-Letter Words Starting I & Ending Y

• the field of chemistry concerned with chemical processes in immunology (such as chemical studies of antigens and antibodies)

• The quality of being difficult to delete, remove, wash away, blot out, or efface.

• the branch of immunology that deals with pathologies of the immune system

• in an ineffective manner

• the property of being resistant to decay

• in an idiographic manner

• the relation between propositions that cannot both be true at the same time

• (immunology) the degree to which the body's immune system will try to reject foreign material (as transfused blood or transplanted tissue)

• the quality of being unable to exist or work in congenial combination