prezygapophysis
An anterior or superior zygapophysis.

prezygote
An egg cell prior to being fertilized

prezygotes
plural of prezygote

priah
Alternative spelling of periah.

primordia
plural of primordium

primordium
An aggregation of cells that is the first stage in the development of an organ.
A primordial, original condition or event.

prismenchyma
prismatic cellular tissue

privates
plural of private

proatlas
A bone located between the skull and the atlas (topmost vertebra), found in some reptiles.

proatlases
plural of proatlas

procambia
plural of procambium

procambium
A meristem that lies just inside the protoderm and develops into primary xylem and primary phloem

procerebra
plural of procerebrum

procerebrum
The prosencephalon.
A structure found at the front of the cerebral ganglion (brain) of some mollusks, such as pulmonate gastropods and cephalopods, which is associated with processing sensory information and coordinating motor functions.
The forepart of an insect brain that is involved in processing sensory information, particularly related to vision and olfaction.

procidentia
A prolapse, especially of the uterus.

procingulum
The front part of the tooth, before the anterior murid.

proclination
Forward inclination, especially of the teeth.

proclinations
plural of proclination

procoele
A lateral cavity of the prosencephalon; a lateral ventricle of the brain.

procoeles
plural of procoele

procolipase
The inactive form of colipase, secreted by the pancreas and activated in the intestinal lumen by trypsin.

procolipases
plural of procolipase

procoracoid
A small bone, anterior to the coracoid, present in some, mostly extinct, reptiles

procoracoids
plural of procoracoid

procorpus
The anterior part of the corpus in the pharynx of a nematode

proctectomies
plural of proctectomy

proctectomy
The resection of the rectum and anus.

proctocele
Inversion and prolapse of the mucous coat of the rectum, from relaxation of the sphincter, with swelling.

proctoclysis
An enema for purposes of rehydration; delivery of fluids via the rectum.

proctocolectomies
plural of proctocolectomy

proctocolectomy
The removal of the rectum and all or part of the colon.

proctography
diagnostic imaging of the colon, rectum and anus

proctoscopies
plural of proctoscopy

proctoscopy
The examination of the anal cavity, rectum or sigmoid colon by means of a proctoscope.

proctosigmoidectomies
plural of proctosigmoidectomy

proctosigmoidectomy
Complete or partial excision of the rectum and sigmoid colon.

proctostomy
the surgical creation of an artificial opening into the rectum

proctosurgery
Surgery of the colon, rectum or anus.

proctotomies
plural of proctotomy

proctotomy
An incision into the rectum, such as for the division of a stricture

prodocyte
Misspelling of podocyte.

proepicardia
plural of proepicardium

proepicardium
An embryonic group of progenitor cells that forms near the venous pole of the heart and gives rise to the epicardium.

proestrus
A phase of the oestrus cycle, prior to sexual receptivity, during which one or more follicles of the ovary begin to grow.

profilaggrin
A polymeric precursor of filaggrin present in keratohyalin granules in cells of the stratum granulosum.

profunda
A deep-seated artery, as of the arm, neck, or leg.

profundae
plural of profunda

profundaplasty
A surgical procedure that enlargens the junction of the deep femoral artery.

profurca
A bundle of muscles in the thorax of some insects

profurcae
plural of profurca

progamete
A cell that divides to form gametes, or occasionally passes into a gamete.

progametes
plural of progamete

progemmation
The situation where stylospores are given off from basidia, new terminal cells being developed from older or basal cells.

proglottid
A segment of a tapeworm; they contain both male and female reproductive organs

proglottids
plural of proglottid

progranulocyte
promyelocyte

progranulocytes
plural of progranulocyte

prohaemocyte
Alternative form of prohemocyte.

prohaemocytes
plural of prohaemocyte

prohaptor
An anterior haptor.

prohaptors
plural of prohaptor

prohemocyte
A form of invertebrate stem cell that becomes a hemocyte

prohemocytes
plural of prohemocyte

projectome
All the neural projections within a brain

projectomes
plural of projectome

prolotherapy
The injection of an otherwise non-pharmacological and non-active irritant solution into the body, generally in the region of tendons or ligaments for the purpose of strengthening weakened connective tissue and alleviating musculoskeletal pain.

prolymphocyte
The immediate precursor of a lymphocyte, derived from a lymphoblast, found during lymphocytopoiesis.

prolymphocytes
plural of prolymphocyte

promastigote
A stage in unicellular life-cycle, typically trypanosomes, where the flagellum is anterior of the nucleus, and free from the cell body.

promastigotes
plural of promastigote

promastocyte
A form of mast cell

promastocytes
plural of promastocyte

promegakaryocyte
A precursor cell for a megakaryocyte, arising from a megakaryoblast.

promegakaryocytes
plural of promegakaryocyte

promeristem
The part of a meristem that contains undifferentiated cells

promeristems
plural of promeristem

promine
The promoting agent in Szent-Györgyi's theory of cell division.

promitochondria
plural of promitochondrion

promitochondrion
A primitive mitochondrion that lacks some inner membranes

promonocyte
A cell, arising from a monoblast, that develops into a monocyte

promonocytes
plural of promonocyte

promont
A promontory.

promontoria
plural of promontorium

promontories
plural of promontory

promontorium
Synonym of promontory.

promontoriums
plural of promontorium

promontory
A high point of land extending into a body of water, headland; cliff.
A projecting part of the body.
A projecting part of the body.

pronator
Any muscle that produces pronation

pronatores
plural of pronator

pronators
plural of pronator

pronephroi
plural of pronephros

pronephros
A primitive kidney in the lamprey and similar animals, and in other vertebrate embryos

pronephroses
plural of pronephros

proneuromast
The collection of cells that develops to form a neuromast

proneuromasts
plural of proneuromast

prophragma
An internal dorsal chitinous process between the first two divisions of the thorax of insects.

prophragmata
plural of prophragma

proplastid
A small, colourless cell that develops into any form of plastid

proplastids
plural of proplastid

proplatelet
A portion of a megakaryocyte which is broken off to form a platelet.

proplatelets
plural of proplatelet

proprioceptor
A nerve ending that functions as a sensory receptor in muscles, tendons, joints and the inner ear; they respond to movement and position

proprioceptors
plural of proprioceptor

proprioreceptor
Alternative form of proprioceptor.

proprioreceptors
plural of proprioreceptor

prorubricyte
A red blood cell precursor, the third nucleated stage of red blood cell production.

prosenchyma
The tissues formed of elongated cells, especially those with pointed or oblique extremities, such as the principal cells of ordinary wood.

prosomite
The somite of a prosome

prosomites
plural of prosomite

prosoplasia
The differentiation of cells to a higher function or a higher level of organization.

prosoplectenchyma
Synonym of prosenchyma

prospermatogonia
plural of prospermatogonium

prospermatogonium
Synonym of gonocyte.

prosphyses
plural of prosphysis

prosporangia
plural of prosporangium

prosporangium
A vesicular cell in Chytridieæ, the protoplasm of which passes an outgrowth of itself, the sporangium, and becomes divided into swarm spores.

prostasome
A membranous vesicle secreted by the prostate gland into the semen

prostasomes
plural of prostasome

prostatectomies
plural of prostatectomy

prostatectomy
The surgical removal of part or all of the prostate gland.

prostatorrhea
Alternative spelling of prostatorrhoea.