Definition of metamorphosis

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Metamorphosis (n.) A change in the form or function of a living organism, by a natural process of growth or development; as, the metamorphosis of the yolk into the embryo, of a tadpole into a frog, or of a bud into a blossom. Especially, that form of sexual reproduction in which an embryo undergoes a series of marked changes of external form, as the chrysalis stage, pupa stage, etc., in insects. In these intermediate stages sexual reproduction is usually impossible, but they ultimately pass into

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Phoronis :: Phoronis (n.) A remarkable genus of marine worms having tentacles around the mouth. It is usually classed with the gephyreans. Its larva (Actinotrocha) undergoes a peculiar metamorphosis.
Monogenesis :: Monogenesis (n.) The direct development of an embryo, without metamorphosis, into an organism similar to the parent organism; -- opposed to metagenesis..
Ametabola :: Ametabola (n. pl.) A group of insects which do not undergo any metamorphosis.
Metamorphosis :: Metamorphosis (n.) The change of material of one kind into another through the agency of the living organism; metabolism.
Hemimetabolic :: Hemimetabolic (a.) Having an incomplete metamorphosis, the larvae differing from the adults chiefly in laking wings, as in the grasshoppers and cockroaches..
Phyllody :: Phyllody (n.) A retrograde metamorphosis of the floral organs to the condition of leaves.
Diptera :: Diptera (n. pl.) An extensive order of insects having only two functional wings and two balancers, as the house fly, mosquito, etc. They have a suctorial proboscis, often including two pairs of sharp organs (mandibles and maxillae) with which they pierce the skin of animals. They undergo a complete metamorphosis, their larvae (called maggots) being usually without feet..
Pupa :: Pupa (n.) Any insect in that stage of its metamorphosis which usually immediately precedes the adult, or imago, stage..
Holometabola :: Holometabola (n. pl.) Those insects which have a complete metamorphosis; metabola.
Transformation :: Transformation (n.) Change of one from of material into another, as in assimilation; metabolism; metamorphosis..
Transformation :: Transformation (n.) Any change in an organism which alters its general character and mode of life, as in the development of the germ into the embryo, the egg into the animal, the larva into the insect (metamorphosis), etc.; also, the change which the histological units of a tissue are prone to undergo. See Metamorphosis..
Palingenesy :: Palingenesy (n.) That form of evolution in which the truly ancestral characters conserved by heredity are reproduced in development; original simple descent; -- distinguished from kenogenesis. Sometimes, in zoology, the abrupt metamorphosis of insects, crustaceans, etc..
Hemimetabola :: Hemimetabola (n. pl.) Those insects which have an incomplete metamorphosis.
Phyllome :: Phyllome (n.) A foliar part of a plant; any organ homologous with a leaf, or produced by metamorphosis of a leaf..
Larva :: Larva (n.) The early, immature form of any animal when more or less of a metamorphosis takes place, before the assumption of the mature shape..
Metamorphosis :: Metamorphosis (n.) Change of form, or structure; transformation..
Ametabolian :: Ametabolian (a.) Of or pertaining to insects that do undergo any metamorphosis.
Ametabolous :: Ametabolous (a.) Not undergoing any metamorphosis; as, ametabolic insects..
Metabolic :: Metabolic (a.) Of or pertaining to metamorphosis; pertaining to, or involving, change..
Hypermetamorphosis :: Hypermetamorphosis (n.) A kind of metamorphosis, in certain insects, in which the larva itself undergoes remarkable changes of form and structure during its growth..
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