Category: I

A machine that increases the amount of negative ions in the atmosphere of a room, so counteracting the effect of positive ions.  

To give an atom an electric charge.  

Referring to involution. Concerning involution or a turning inward.  

A covering of new bone which forms over diseased bone. A growth of new bone, formed from the periosteum, that sometimes surrounds a mass of infected and dead bone in osteomyelitis. The sheath of new bone which is formed round a piece of dead bone in, for example, osteomyelitis.  

An experiment on a living body, e.g. that of an animal.  

The fertilisation of an ovum in the laboratory. Fertilization of the egg (ovum) outside the body. The fertilized ovum is then incubated until the blastocyst stage develops, when it is implanted into the uterus. The procedure was developed in Britain and the first successful in vitro baby, a girl, was born in 1978. IVF is…

Surgery to investigate the cause of a condition.  

An examination to find out the cause of something which has happened.  

The entry of bacteria into a body, or the first attack of a disease. The entry of bacteria into the body; the spread of cancer into normal, nearby tissues or organs. The penetration of body tissues by infectious organisms or malignant cells. The infiltration and establishment of an organism within a host’s system.  

The condition of being disabled.