​Medical Dictionary – The Definition of Anatoxin 
Anatoxin is the old name for toxoid. 

Medical Dictionary – The Definition of Anatomy 
Anatomy is the study of the living organism’s structure. It refers to the study of the gross structure and form of the various parts of the human body. 

​Medical Dictionary –  Definition of Anatomical Snuffbox 
It is the triangular region located at the most distal and radial parts of the wrist. Its overlying the scaphoid bone which is bounded by the extensor tendons of the thumb.

Medical Dictionary - The Definition of Anatomical Position 
Anatomical position is the internationally accepted  body position while providing description of anatomical parts of the body in relation to the position of other parts / position of the body. Person need to stand erect with arms hanging by the side and palms facing frontwards. The toes, legs and feet are pointing forward.

Medical Dictionary - The Definition of Anastomosis 
Anastomosis is the communication / connection between blood vessels. It also means the joining of the hollow organs via surgical approach.For instance, the blood vessels and different parts of the intestines. The purpose is to bypass disease or resection of tissue to restore the continuity of the affected organ. 

Medical Dictionary - The Definition of Anasarca
Anasarca is associated with renal failure and congestive heart failure. It is characterised with massive swelling of the genitalia, trunk and legs. Ansarca occurs due to retention of the fluid. 

Medical Dictionary - The Definition of Anaplasia 
Anaplasia is the loss of the differentiation and normal characteristic of the cell. it would be difficult to identify the origin of the cells. Is is associated with rapidly growing malignant tumours known as anaplastic.

Medical Dictionary - The Definition of Anaphylaxis
Anaphylaxis is a condition which is caused by exposure to  to a substance ( latex, peanuts, bee or wasp sting) which the body become intensely sensitised. Patient presents with symptoms and signs such as nausea, vomiting, itching, flushing, swelling of the mouth and tongue as well as airway.There will be drop in blood pressure, wheezing.In worst case scenario, sudden death may occur. 
The treatments for anaphylaxis in emergency setting include administration of oxygen with advanced support, injection of adrenaline/ epinephrine, intravenous corticosteroids, intravenous fluids and antihistamines.

Medical Dictionary - The Definition of Anaphase 
Anaphase is the third stage of mitosis. Anaphase is also linked with meiosis in the form of anaphase I and anaphase II. 
In anaphase I of the meiosis the pairs of the homologous chromosomes are separated from each other. 
In anaphase II of the meiosis  and in mitosis, the chromatids separate later becoming daughter chromosomes. they will move apart along the spindle fibers towards the opposite end of the cells.

Medical Dictionary - The Definition of Anankastic 
Anankastic may be characterised by the person who is stubborn, mean and over meticulous as well as accurate to the small detail. He / she has the tendency to check things unnecessarily with severe feeling of low self esteem and personal worth. It is a form of longstanding personal trait.