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ound in the flowers of a plant (Murraya exotica) of South Asia, and extracted as a white amorphous slightly bitter substance.

Of or pertaining to necrobiosis; as, a necrobiotic metamorphosis.

organs are adapted for chewing. They feed upon other insects, and undergo a complete metamorphosis. The ant-lion, hellgamite, and lacewing fly are examples. Formerly, the name was given to a much more extensive group, including the true Neuroptera and the Pseudoneuroptera.

A constituent of the nuclei of all cells. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur.

A reddish brown amorphous dyestuff,

The germ history of the organs and systems of organs, -- a branch of morphogeny. Haeckel.

t branch of biology which treats, in particular, of the organs of animals and plants. See Morphology.

The tribal history of organs, -- a branch of morphophyly. Haeckel.

Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing. Our orpiment and sublimed mercurie. Chauce…

ved from osmium, analogous to sulphurous acid, and forming unstable salts. It is a brown amorphous substance.

simple descent; -- distinguished from kenogenesis. Sometimes, in zoölogy, the abrupt metamorphosis of insects, crustaceans, etc.

A polymeric modification of cyanogen, obtained as a brown or black amorphous residue by heating mercuric cyanide.

A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. It is obtained by lixiviating wood ashes, and evaporating the lye, and has been an important source of potassium compounds. It is used in making soap, glass, etc.

specifically, designating an acid obtained from ordinary vegetable jelly (pectin) as an amorphous substance, tough and horny when dry, but gelatinous when moist.

An amorphous carbohydrate found in the vegetable kingdom, esp. in unripe fruits. It is associated with cellulose, and is converted into substances of the pectin group.

The metamorphosis of various floral organs, usually stamens, into petals.

A sweet amorphous deliquescent substance obtained indirectly from benzene, and isometric with, and resembling, dextrose.

is usually classed with the gephyreans. Its larva (Actinotrocha) undergoes a peculiar metamorphosis.

An inert amorphous white powder, PN2H, obtained by passing ammonia over heated phosphorus. [Spelt also phosphame.] -- Phos"pham"ic, a.

s in phosphorus, giving rise to necrosis of the jawbone, and other symptoms. -- Red, or Amorphous, phosphorus (Chem.), an allotropic modification of phosphorus, obtained as a dark red powder by heating ordinary phosphorus in closed vessels. It is not poisonous, is not phosphorescent, and is only moderately active chem…