Definitions for Regenerationrɪˌdʒɛn əˈreɪ ʃən
This page provides all possible meanings and translations of the word Regeneration
(biology) growth anew of lost tissue or destroyed parts or organs
positive feedback, regeneration(noun)
feedback in phase with (augmenting) the input
the activity of spiritual or physical renewal
forming again (especially with improvements or removal of defects); renewing and reconstituting
rebuilding or restructuring; large scale repair or renewal.
The conversion of so many old industrial buildings into living quarters was a major factor in the regeneration.
the act of regenerating, or the state of being regenerated
the entering into a new spiritual life; the act of becoming, or of being made, Christian; that change by which holy affectations and purposes are substituted for the opposite motives in the heart
the reproduction of a part which has been removed or destroyed; re-formation; -- a process especially characteristic of a many of the lower animals; as, the regeneration of lost feelers, limbs, and claws by spiders and crabs
the reproduction or renewal of tissues, cells, etc., which have been used up and destroyed by the ordinary processes of life; as, the continual regeneration of the epithelial cells of the body, or the regeneration of the contractile substance of muscle
the union of parts which have been severed, so that they become anatomically perfect; as, the regeneration of a nerve
Origin: [L. regeneratio: cf. F. rgneration.]
In biology, regeneration is the process of renewal, restoration, and growth that makes genomes, cells, organs, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage. Every species is capable of regeneration, from bacteria to humans. Regeneration can either be complete where the new tissue is the same as the lost tissue, or incomplete where after the necrotic tissue comes fibrosis. At its most elementary level, regeneration is mediated by the molecular processes of DNA synthesis. Regeneration in biology, however, mainly refers to the morphogenic processes that characterize the phenotypic plasticity of traits allowing multi-cellular organisms to repair and maintain the integrity of their physiological and morphological states. Above the genetic level, regeneration is fundamentally regulated by asexual cellular processes. Regeneration is different from reproduction. For example, hydra perform regeneration but reproduce by the method of budding. The hydra and the planarian flatworm have long served as model organisms for their highly adaptive regenerative capabilities. Once wounded, their cells become activated and start to remodel tissues and organs back to the pre-existing state. The Caudata, an order of tailed amphibians, is possibly the most adept vertebrate group at regeneration, given their capability of regenerating limbs, tails, jaws, eyes and a variety of internal structures. The regeneration of organs is a common and widespread adaptive capability among metazoan creatures. In a related context, some animals are able to reproduce asexually through fragmentation, budding, or fission. A planarian parent, for example, will constrict, split in the middle, and each half generates a new end to form two clones of the original. Echinoderms, crayfish, many reptiles, and amphibians exhibit remarkable examples of tissue regeneration. The case of autotomy, for example, serves as a defensive function as the animal detaches a limb or tail to avoid capture. After the limb or tail has been autotomized, cells move into action and tissues regenerate. Ecosystems are regenerative as well. Following a disturbance, such as a fire or pest outbreak in a forest, pioneering species will occupy, compete for space, and establish themselves in the newly opened habitat. The new growth of seedlings and community assembly process is known as regeneration in ecology.
U.S. National Library of Medicine
The physiological renewal, repair, or replacement of tissue.
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