Psychiatry (n.) The application of the healing art to mental diseases.
Psychiatric (a.) Of or pertaining to psychiatria.
Psychic (a.) Alt. of Psychical
Psychical (a.) Of or pertaining to the human soul, or to the living principle in man.
Psychical (a.) Of or pertaining to the mind, or its functions and diseases; mental; -- contrasted with physical.
Psychics (n.) Psychology.
Psychism (n.) The doctrine of Quesne, that there is a fluid universally diffused, end equally animating all living beings, the difference in their actions being due to the difference of the individual organizations.
Psycho- () A combining form from Gr. psychh` the soul, the mind, the understanding; as, psychology.
Psychogenesis (n.) Genesis through an internal force, as opposed to natural selection.
Psychography (n.) A description of the phenomena of mind.
Psychography (n.) Spirit writing.
Psychologic (a.) Alt. of Psychological
Psychological (a.) Of or pertaining to psychology. See Note under Psychic.
Psychologist (n.) One who is versed in, devoted to, psychology.
Psychologue (n.) A psychologist.
Psychologies (pl. ) of Psychology
Psychology (n.) The science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far as they are known by consciousness; a treatise on the human soul.
Psychomachy (n.) A conflict of the soul with the body.
Psychomancy (n.) Necromancy.
Psychometry (n.) The art of measuring the duration of mental processes, or of determining the time relations of mental phenomena.
Psycho-motor (a.) Of or pertaining to movement produced by action of the mind or will.
Psychopannychism (n.) The doctrine that the soul falls asleep at death, and does not wake until the resurrection of the body.
Psychopathy (n.) Mental disease. See Psychosis, 2.
Psychophysical (a.) Of or pertaining to psychophysics; involving the action or mutual relations of the psychical and physical in man.
Psychophysics (n.) The science of the connection between nerve action and consciousness; the science which treats of the relations of the psychical and physical in their conjoint operation in man; the doctrine of the relation of function or dependence between body and soul.
Psychopomp (n.) A leader or guide of souls .
Psychosis (n.) Any vital action or activity.
Psychosis (n.) A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.
Psychozoic (a.) Designating, or applied to the Era of man; as, the psychozoic era.
Psychrometer (n.) An instrument for measuring the tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.
Psychrometrical (a.) Of or pertaining to the psychrometer or psychrometry.
Psychrometry (n.) Hygrometry.
Psyllae (pl. ) of Psylla
Psylla (n.) Any leaping plant louse of the genus Psylla, or family Psyllidae.
Ptarmigan (n.) Any grouse of the genus Lagopus, of which numerous species are known. The feet are completely feathered. Most of the species are brown in summer, but turn white, or nearly white, in winter.
Ptenoglossa (n. pl.) A division of gastropod mollusks having the teeth of the radula arranged in long transverse rows, somewhat like the barbs of a feather.
Ptenoglossate (a.) Of or pertaining to the Ptenoglossa.
Pteranodon (n.) A genus of American Cretaceous pterodactyls destitute of teeth. Several species are known, some of which had an expanse of wings of twenty feet or more.
Pteranodontia (n. pl.) A group of pterodactyls destitute of teeth, as in the genus Pteranodon.
Pterichthys (n.) A genus of Devonian fossil fishes with winglike appendages. The head and most of the body were covered with large bony plates. See Placodermi.
Pteridologist (n.) One who is versed in pteridology.
Pteridology (n.) That department of botany which treats of ferns.
Pteridomania (n.) A madness, craze, or strong fancy, for ferns.
Pteridophyta (n. pl.) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia.
Pterobranchia (n. pl.) An order of marine Bryozoa, having a bilobed lophophore and an axial cord. The genus Rhabdopleura is the type. Called also Podostomata. See Rhabdopleura.
Pteroceras (n.) A genus of large marine gastropods having the outer border of the lip divided into lobes; -- called also scorpion shell.
Pterocletes (n. pl.) A division of birds including the sand grouse. They are in some respects intermediate between the pigeons and true grouse. Called also Pteroclomorphae.
Pterodactyl (n.) An extinct flying reptile; one of the Pterosauria. See Illustration in Appendix.
Pterodactyli (n. pl.) Same as Pterosauria.
Pteroglossal (a.) Having the tongue finely notched along the sides, so as to have a featherlike appearance, as the toucans.
Pteron (n.) The region of the skull, in the temporal fossa back of the orbit, where the great wing of the sphenoid, the temporal, the parietal, and the frontal hones approach each other.
Pteropappi (n. pl.) Same as Odontotormae.
Pterophore (n.) Any moth of the genus Pterophorus and allied genera; a plume moth. See Plume moth, under Plume.
Pteropod (n.) One of the Pteropoda.
Pteropoda (n. pl.) A class of Mollusca in which the anterior lobes of the foot are developed in the form of broad, thin, winglike organs, with which they swim at near the surface of the sea.
Pteropodous (a.) Of or pertaining to the Pteropoda.
Pterosaur (n.) A pterodactyl.
Pterosauria (n. pl.) An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli, and Ornithosauria.
Pterosaurian (a.) Of or pertaining to the Pterosauria.
Pterostigmata (pl. ) of Pterostigma
Pterostigma (n.) A thickened opaque spot on the wings of certain insects.
Pterotic (a.) Of or pertaining to, or designating, a bone between the prootic and epiotic in the dorsal and outer part of the periotic capsule of many fishes.
Pterotic (n.) The pterotic bone.
Pterygiums (pl. ) of Pterygium
Pterygia (pl. ) of Pterygium
Pterygium (n.) A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.
Pterygoid (a.) Like a bird's wing in form; as, a pterygoid bone.
Pterygoid (a.) Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone.
Pterygoid (n.) A pterygoid bone.
Pterygomaxillary (a.) Of or pertaining to the inner pterygoid plate, or pterygoid bone, and the lower jaw.
Pterygopalatine (a.) Of or pertaining to the pterygoid processes and the palatine bones.
Pterygopodia (pl. ) of Pterygopodium
Pterygopodium (n.) A specially modified part of the ventral fin in male elasmobranchs, which serves as a copulatory organ, or clasper.
Pterygoquadrate (a.) Of, pertaining to, or representing the pterygoid and quadrate bones or cartilages.
Pterylae (pl. ) of Pteryla
Pteryla (n.) One of the definite areas of the skin of a bird on which feathers grow; -- contrasted with apteria.
Pterylography (n.) The study or description of the arrangement of feathers, or of the pterylae, of birds.
Pterylosis (n.) The arrangement of feathers in definite areas.
Ptilocerque (n.) The pentail.
Ptilopaedes (n. pl.) Same as Dasypaedes.
Ptilopaedic (a.) Having nearly the whole surface of the skin covered with down; dasypaedic; -- said of the young of certain birds.
Ptilopteri (n. pl.) An order of birds including only the penguins.
Ptilosis (n.) Same as Pterylosis.
Ptisan (n.) A decoction of barley with other ingredients; a farinaceous drink.
Ptisan (n.) An aqueous medicine, containing little, if any, medicinal agent; a tea or tisane.
Ptolemaic (a.) Of or pertaining to Ptolemy, the geographer and astronomer.
Ptolemaist (n.) One who accepts the astronomical system of Ptolemy.
Ptomaine (n.) One of a class of animal bases or alkaloids formed in the putrefaction of various kinds of albuminous matter, and closely related to the vegetable alkaloids; a cadaveric poison. The ptomaines, as a class, have their origin in dead matter, by which they are to be distinguished from the leucomaines.
Ptosis (n.) Drooping of the upper eyelid, produced by paralysis of its levator muscle.
Ptyalin (n.) An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals.
Ptyalism (n.) Salivation, or an excessive flow of saliva.
Ptyalogogue (n.) A ptysmagogue.
Ptysmagogue (n.) A medicine that promotes the discharge of saliva.
Ptyxis (n.) The way in which a leaf is sometimes folded in the bud.
Pubble (a.) Puffed out, pursy; pudgy; fat.
Puberal (a.) Of or pertaining to puberty.
Puberty (n.) The earliest age at which persons are capable of begetting or bearing children, usually considered, in temperate climates, to be about fourteen years in males and twelve in females.
Puberty (n.) The period when a plant first bears flowers.
Puberulent (a.) Very minutely downy.
Pubes (n.) The hair which appears upon the lower part of the hypogastric region at the age of puberty.