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Organic structure; organization. "The advantageous organism of the eye." Grew.

An external parasitic organism.

An internal parasitic organism.

Any microscopic form of life; -- particularly applied to bacteria and similar organisms, esp. such are supposed to cause infectious diseases.

An organism whose nature is so difficult to determine that it might be referred to either the animal or the vegetable kingdom.

The supposed origination of living organisms from lifeless matter; such genesis as does not involve the action of living parents; spontaneous generation; -- called also abiogeny, and opposed to biogenesis. I shall call the . . . doctrine that living matter may be produced by not living matter, the hypothesis of abiogen…

In living organisms, the process by which the materials of growth and nutrition are absorbed and conveyed to the tissues and organs.

Any one of the active processes going on in an organism; the performance of a function; as, the action of the heart, the muscles, or the gastric juice.

irs in the germ cells of Mendelian hybrids, and exhibited in varying proportion among the organisms themselves. Allelomorphs which under certain circumstances are themselves compound are called hypallelomorphs. See Mendel's law. -- Al*le`lo*mor"phic (#), a.

The doctrine that the anatomical structure explains all the phenomena of the organism or of animal life.

A microscopic, bacterial organism (Bacillus anthracis), resembling transparent rods. [See Illust. under Bacillus.]

The science of the laws of the development of the human organism in relation to other organisms and to environment. -- An`thro*po*nom"ic*al (#), a.

Prevention of sepsis by excluding or destroying microorganisms.

tance which prevents or retards putrefaction, or destroys, or protects from, putrefactive organisms; as, salt, carbolic acid, alcohol, cinchona.

A substance (sometimes the product of a specific micro-organism and sometimes naturally present in the blood or tissues of an animal), capable of producing immunity from certain diseases, or of counteracting the poisonous effects of pathogenic bacteria.

A depth of water so great that only those organisms can exist that do not assimilate.

er and to swim; the tendency of an organized body to seek what satisfies the wants of its organism. These lacteals have mouths, and by animal selection or appetency the absorb such part of the fluid as is agreeable to their palate. E. Darwin.

Poisoning caused by a virus that originates and develops in the organism itself.

Dependent upon, or due or relating to, the structure and characteristics of the diseased organism; endopathic; as, an autopathic disease; an autopathic theory of diseases.

A variety of bacterium; a microscopic, rod-shaped vegetable organism.