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Pterosaurian
a.
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Of or pertaining to the Pterosauria.
Pterostigmata
pl.
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of Pterostigma
Pterostigma
n.
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A thickened opaque spot on the wings of certain insects.
Pterotic
a.
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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.
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The pterotic bone.
Pterygiums
pl.
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of Pterygium
Pterygia
pl.
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of Pterygium
Pterygium
n.
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A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.
Pterygoid
a.
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Like a bird's wing in form; as, a pterygoid bone.
Pterygoid
a.
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Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone.
Pterygoid
n.
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A pterygoid bone.
Pterygomaxillary
a.
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Of or pertaining to the inner pterygoid plate, or pterygoid bone, and the lower jaw.
Pterygopalatine
a.
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Of or pertaining to the pterygoid processes and the palatine bones.
Pterygopodia
pl.
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of Pterygopodium
Pterygopodium
n.
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A specially modified part of the ventral fin in male elasmobranchs, which serves as a copulatory organ, or clasper.
Pterygoquadrate
a.
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Of, pertaining to, or representing the pterygoid and quadrate bones or cartilages.
Pterylae
pl.
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of Pteryla
Pteryla
n.
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One of the definite areas of the skin of a bird on which feathers grow; -- contrasted with apteria.
Pterylography
n.
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The study or description of the arrangement of feathers, or of the pterylae, of birds.
Pterylosis
n.
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The arrangement of feathers in definite areas.
Ptilocerque
n.
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The pentail.
Ptilopaedes
n. pl.
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Same as Dasypaedes.
Ptilopaedic
a.
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Having nearly the whole surface of the skin covered with down; dasypaedic; -- said of the young of certain birds.
Ptilopteri
n. pl.
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An order of birds including only the penguins.
Ptilosis
n.
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Same as Pterylosis.
Ptisan
n.
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A decoction of barley with other ingredients; a farinaceous drink.
Ptisan
n.
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An aqueous medicine, containing little, if any, medicinal agent; a tea or tisane.
Ptolemaic
a.
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Of or pertaining to Ptolemy, the geographer and astronomer.
Ptolemaist
n.
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One who accepts the astronomical system of Ptolemy.
Ptomaine
n.
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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.