- prelal
- prelamin A endoprotease
- prelaminar part of optic nerve
- prelaryngeal
- prelaryngeal lymph nodes
- prelatess
- preleptonema
- preleptotene
- preleukaemia
- prelimbic
- preliminary
- preliminary impression
- prelingual deafness
- preload
- prelogical mind
- prelumbar
- prelycopersene pyrophosphate synthetase
- premalignant
- premammary abscess
- premaniacal
- premature
- premature beat
- premature contact
- premature contraction
- premature contraction of the heart
- premature delivery
- premature labour
- premature senility syndrome
- premature systole
- premature ventricular contraction
- premature ventricular contractions
- prematurity
- premaxilla
- premaxillary
- premaxillary bone
- premaxillary suture
- premedication
- premeiotic phase
- premelanosome
- premenopause
- premenstrual
- premenstrual oedema
- premenstrual salivary syndrome
- premenstrual syndrome
- premenstrual tension
- premenstrual tension syndrome
- premenstruum
- premices
- premise
- premitochondria
- premitotic phase
- premolar
- premolar tooth
- premonitory
- premonocyte
- premonstratensian
- premorbid
- premorse
- premotor area
- premotor cortex
- premotor syndrome
- premunition
- premunitive
- premyeloblast
- premyelocyte
- prenalterol
- prenaris
- prenasal
- prenatal
- prenatal care
- prenatal diagnosis
- prenatal exposure delayed effects
- prenatal life
- prenatal screening
- prenazone
- preneoplastic
- prenodular fissure
- Prentice
- Prentice's rule
- prenyl
- prenylamine
- prenylated peptide-specific endoprotease
- prenylation
- prenylcysteine lyase
- preoblongata
- preoccipital notch
- preocular
- preoperative
- preoperative care
- preoperative record
- preopercular
- preoperculum
- preoptic
- preoptic area
- preoptic region
- preoral
- preoral gut
- preorbital
- preosteoblast
- preoxygenation
- prepaid health plans
- prepalatal
- prepapillary sphincter
- preparalytic
- preparation
- preparative regimen
- prepare
- prepared chalk
- prepared ipecacuanha
- prepared mutton tallow
- preparturient
- prepatellar
- prepatellar bursa
- prepatellar bursitis
- prepatent period
- prepenial
- prepenicillinase
- prepericardiac lymph nodes
- preperitoneal
- prephenate aminotransferase
- prephenate dehydratase
- prephenate dehydrogenase
- prephenic acid
- prephytoene pyrophosphate dehydrogenase
- prepiriform gyrus
- preplacental
- prepollent
- preponderate
- prepossess
- preposterous
- prepotency
- prepotent
- prepotential
- preprocolipase
- preprocollagen
- preprocollagenase
- preproinsulin
- preprophase
- preproprotein
- preprostate urethral sphincter
- preprotein
- preprothrombin carboxylase
- preprourokinase
- prepsychotic
- prepubertal
- prepubescent
- prepubic
- prepubis
- prepuce
- prepuce of clitoris
- preputial
- preputial calculus
- preputial glands
- preputial sac
- preputiotomy
- preputium
- preputium clitoridis
- prepyloric
- prepyloric sphincter
- prepyloric vein
- prepyramidal tract
- prerectal
- prerectal lithotomy
- prereduced
- prereduction phase
- prerenal
- prerenal albuminuria
- preretinal
- prerubral field
- prerubral nucleus
- presacral
- presacral anaesthesia
- presacral nerve
- presacral neurectomy
- presacral sympathectomy
- presby-
- presbyacousia
- presbyacusis
- presbyatrics
- presbycusis
- presbyope
- presbyopia
- presbyopic
- presbytia
- prescind
- prescribe
- prescribed burn
- prescription
- prescription drug
- prescription fees
- prescriptions, drug
- prescriptions, non-drug
- prescutum
- presecretory granule
- presenile
- presenile dementia
- presenile spontaneous gangrene
- presenility
- presenium
- present