macrophage – large white blood cell that engulfs or ‘eats’ infectious organisms and waste material from dead cells.
Glossary
Selected words and phrases
nucleus – the central part of some cells that contains DNA.
pulmonary – relating to the lungs.
NHL (Non-Hodgkins lymphoma) – a type of lymph cancer.
in vitro – a study in a test tube. Literally, ‘in glass’.