(archaic, historical) A device historically used for obtaining instantaneous light, such as a lucifer match.
hyperion
pejority
pejority
noun
pejoration; process of making or becoming worse
perionyx
perionyx
noun
(anatomy) The epidermis bordering a nail.
peritomy
peritomy
noun
The surgical removal of a strip of the conjunctiva of an eye.
petitory
petitory
adj
petitioning, soliciting, begging, petitionary
pigeonry
pigeonry
noun
A place for pigeons; a dovecote.
polypier
polypier
noun
A polyparium
The individual attachment of a polyp to a polypidom
proseity
pyrenoid
pyrenoid
noun
(biology) any of several transparent structures found in the chloroplast of certain algae etc.; they are responsible for the fixation of carbon dioxide and the formation of starch
pyribole
pyribole
noun
(mineralogy) Any mineral of either the pyroxene or amphibole groups.
pyridone
pyridone
noun
(organic chemistry) Either of two isomeric derivatives of pyridine having a carbonyl group either ortho- or para- to the nitrogen atom; in its tautomeric form, it is the pyridine analogue of phenol.
pyrodine
pyroline
pyrolite
pyrolite
noun
A theoretical rock considered to be the best approximation of the composition of Earth's upper mantle, generally considered to be one part tholeiitic basalt and three parts dunite.
pyronine
pyronine
noun
Any of a group of xanthene dyes used to stain RNA, especially in electrophoresis.
