Impaction
1. (Science: surgery) The driving of one fragment of bone into another so that the fragments are not movable upon each other; as, impaction of the skull or of the hip.
2. (Science: medicine) An immovable packing;, a lodgment of something in a strait or passage of the body; as, impaction of the foetal head in the strait of the pelvis; impaction of food or feces in the intestines of man or beast.
Origin: L. Impactio a striking: cf. F. Impaction.
Impaction 1. (Science: surgery) The driving of one fragment of bone into another so that the fragments are not movable upon each other; as, impaction of the skull or of the hip. 2. (Science: medicine) An immovable packing;, a lodgment of something in a strait or passage of the body; as, impaction of the foetal..
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..
The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..
Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..
Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward b..
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
