orthodontist
one who straighten teeth
cardiology
study of heart
cardiogram
electrically produced record of heartbeat
cardiograph
the instruments which produce record of heartbeat
cardiac
malfunction in heart
neuralgia
neuron+algos –pain in nerves
neuritis
inflamation in nerves
neurosis
neuron(nerve) +osis(abnormal or disease conditions),, illness of nerves but later said like the person who worries lot about his health who counts money and feels bad like that £ emotional imbalence
psychosis
payche+osis–mental disorder
psychotic
one who lost contact with reality
geriatrics
geras+iateria—medical healing of old age people’s