organic phenomenon

Definitions of organic phenomenon
  1. noun
    (biology) a natural phenomenon involving living plants and animals
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    dominance
    the organic phenomenon in which one of a pair of alleles present in a genotype is expressed in the phenotype and the other allele of the pair is not
    abiogenesis, autogenesis, autogeny, spontaneous generation
    a hypothetical organic phenomenon by which living organisms are created from nonliving matter
    alternation of generations, heterogenesis, xenogenesis
    the alternation of two or more different forms in the life cycle of a plant or animal
    annual ring, growth ring
    an annual formation of wood in plants as they grow
    bioelectricity
    electric phenomena in animals or plants
    circulation
    movement through a circuit; especially the movement of blood through the heart and blood vessels
    cyclosis, streaming
    the circulation of cytoplasm within a cell
    death
    the permanent end of all life functions in an organism or part of an organism
    decay, decomposition
    the organic phenomenon of rotting
    dehiscence
    (biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound
    desquamation, peeling, shedding
    loss of bits of outer skin by peeling or shedding or coming off in scales
    exfoliation
    the peeling off in flakes or scales of bark or dead skin
    diapedesis
    passage of blood cells (especially white blood cells) through intact capillary walls and into the surrounding tissue
    facilitation
    (neurophysiology) phenomenon that occurs when two or more neural impulses that alone are not enough to trigger a response in a neuron combine to trigger an action potential
    food chain
    (ecology) a community of organisms where each member is eaten in turn by another member
    food pyramid
    (ecology) a hierarchy of food chains with the principal predator at the top; each level preys on the level below
    food cycle, food web
    (ecology) a community of organisms where there are several interrelated food chains
    gene expression
    conversion of the information encoded in a gene first into messenger RNA and then to a protein
    histocompatibility
    condition in which the cells of one tissue can survive in the presence of cells of another tissue
    life
    the organic phenomenon that distinguishes living organisms from nonliving ones
    life cycle
    a series of stages through which an organism passes between recurrences of a primary stage
    pleomorphism
    (biology) the appearance of two or more distinctly different forms in the life cycle of some organisms
    polymorphism
    (biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences)
    polymorphism
    (genetics) the genetic variation within a population that natural selection can operate on
    recognition
    (biology) the ability of one molecule to attach to another molecule that has a complementary shape
    rejection
    (medicine) an immunological response that refuses to accept substances or organisms that are recognized as foreign
    greening, rejuvenation
    the phenomenon of vitality and freshness being restored
    sex linkage
    an association between genes in sex chromosomes that makes some characteristics appear more frequently in one sex than in the other
    digenesis, metagenesis
    alternation of sexual and asexual generations
    brain wave, brainwave, cortical potential
    (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph
    systemic circulation
    circulation that supplies blood to all the body except to the lungs
    pulmonary circulation
    circulation of blood between the heart and the lungs
    vitelline circulation
    circulation of blood between the embryo and the yolk sac
    biology
    characteristic life processes and phenomena of living organisms
    aerobiosis
    life sustained in the presence of air or oxygen
    cell death, necrobiosis
    (physiology) the normal degeneration and death of living cells (as in various epithelial cells)
    gangrene, mortification, necrosis, sphacelus
    the localized death of living cells (as from infection or the interruption of blood supply)
    brain death, cerebral death
    death when respiration and other reflexes are absent; consciousness is gone; organs can be removed for transplantation before the heartbeat stops
    dimorphism
    (biology) the existence of two forms of individual within the same animal species (independent of sex differences)
    SNP, single nucleotide polymorphism
    (genetics) genetic variation in a DNA sequence that occurs when a single nucleotide in a genome is altered; SNPs are usually considered to be point mutations that have been evolutionarily successful enough to recur in a significant proportion of the population of a species
    type of:
    natural phenomenon
    all phenomena that are not artificial
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