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Of or pertaining to respiration; serving for respiration; as, the respiratory organs; respiratory nerves; the respiratory function; respiratory changes. Respiratory foods. (Physiol.) See 2d Note under Food, n., 1. -- Respiratory tree (Zoöl.), the branched internal gill of certain holothurians.

A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces.

An order of holothurians in which the internal respiratory organs are wanting; -- called also Apoda or Apodes.

A collection of organs all of which unite in a common function; as, the respiratory apparatus.

A gill; a respiratory organ for breathing the air contained in water, such as many aquatic and semiaquatic animals have.

distended with blood, as in the penis or clitoris. -- Cavernous respiration, a peculiar respiratory sound andible on auscultation, when the bronchial tubes communicate with morbid cavities in the lungs.

A modified respiratory movement; a spasmodic inspiration, consisting of a sudden contraction of the diaphragm, accompanied with closure of the glottis, so that further entrance of air is prevented, while the impulse of the column of air entering and striking upon the closed glottis produces a sound, or hiccough. [Writt…

One of a class of respiratory pigments, widely distributed in the animal kingdom, capable of ready oxidation and reduction.

to protect the lungs from inhaling damp or cold air, noxious gases, dust, etc.; also, the respiratory apparatus for divers.

f an organ, or an agent, as a digestive fluid or ferment, etc.; as, the inhibition of the respiratory center by the pneumogastric nerve; the inhibition of reflexes, etc.

ion; tending or serving to inhibit; as, the inhibitory action of the pneumogastric on the respiratory center. I would not have you consider these criticisms as inhibitory. Lamb. Inhibitory nerves (Physiol.), those nerves which modify, inhibit, or suppress a motor or secretory act already in progress.…

A red-colored respiratory pigment found associated with hemoglobin in the muscle tissue of a large number of animals, both vertebrate and invertebrate.

Viscid mucus secreted in abnormal quantity in the respiratory and digestive passages.

A tracing of the respiratory movements, obtained by a pneumatograph or stethograph.

A division of holothurians having an internal gill, or respiratory tree.

An adventitious sound, usually of morbid origin, accompanying the normal respiratory sounds. See Rhonchus.

An instrument for recording the respiratory movements, as the sphygmograph does those of the pulse.

One of the respiratory tubes of insects and arachnids.

with, tubes. Tubular boiler. See under Boiler. -- Tubular breathing (Med.), a variety of respiratory sound, heard on auscultation over the lungs in certain cases of disease, resembling that produced by the air passing through the trachea. -- Tubular bridge, a bridge in the form of a hollow trunk or tube, made of iron…

Breath modulated by the respiratory and vocal organs, or by an instrument. Their instruments were various in their kind, Some for the bow, and some for breathing wind. Dryden.