|
onco‐
|
tumour, bulk, volume
|
oncology
|
|
onych(o)‐
|
of or pertaining to the nail (of a finger or toe)
|
onychophagy
|
|
oo‐
|
of or pertaining to an egg, a woman’s egg, the ovum
|
oogenesis
|
|
oophor(o)‐
|
of or pertaining to the woman’s ovary
|
oophorectomy
|
|
ophthalm(o)‐
|
of or pertaining to the eye
|
ophthalmology
|
|
optic(o)‐
|
of or relating to chemical properties of the eye
|
opticochemical
|
|
orchi(o)‐, orchid(o)‐, orch(o)‐
|
testes
|
orchiectomy, orchidectomy
|
|
‐osis
|
a condition, disease or increase
|
ichthyosis, psychosis, osteoporosis
|
|
osseo‐
|
bony
|
osseous
|
|
ossi‐
|
bone
|
peripheral ossifying fibroma
|
|
ost(e)‐, oste(o)‐
|
bone
|
osteoporosis
|
|
ot(o)‐
|
of or pertaining to the ear
|
otology
|
|
ovo‐, ovi‐, ov‐
|
of or pertaining to the eggs, the ovum
|
ovogenesis
|
|
pachy‐
|
thick
|
pachyderma
|
|
paed‐, paedo‐
|
of or pertaining to the child
|
paediatrics
|
|
palpebr‐
|
of or pertaining to the eyelid (uncommon as a root)
|
palpebra
|
|
pan‐, pant(o)‐
|
denoting something as ‘complete’ or containing ‘everything’
|
panophobia, panopticon
|
|
papill‐
|
of or pertaining to the nipple (of the chest/breast)
|
papillitis
|
|
papul(o)‐
|
indicates papulosity, a small elevation or swelling in the skin, a pimple, swelling
|
papulation
|
|
para‐
|
alongside of, abnormal
|
paracyesis
|
|
‐paresis
|
slight paralysis
|
hemiparesis
|
|
parvo‐
|
small
|
parvovirus
|
|
path(o)‐
|
disease
|
pathology
|
|
‐pathy
|
denotes (with a negative sense) a disease, or disorder
|
sociopathy, neuropathy
|
|
pector‐
|
breast
|
pectoralgia, pectoriloquy, pectorophony
|
|
ped‐, ‐ped‐, ‐pes
|
of or pertaining to the foot; ‐footed
|
pedoscope
|
|
pelv(i)‐, pelv(o)‐
|
hip bone
|
pelvis
|
|
‐penia
|
deficiency
|
osteopenia
|
|
‐pepsia
|
denotes something relating to digestion, or the digestive tract
|
dyspepsia
|
|
peri‐
|
denoting something with a position ‘surrounding’ or ‘around’ another
|
periodontal
|
|
‐pexy
|
fixation
|
nephropexy
|
|
phaco‐
|
lens‐shaped
|
phacolysis, phacometer, phacoscotoma
|
|
‐phage, ‐phagia
|
forms terms denoting conditions relating to eating or ingestion
|
sarcophagia
|
|
‐phago‐
|
eating, devouring
|
phagocyte
|
|
‐phagy
|
forms nouns that denotes ‘feeding on’ the first element or part of the word
|
haematophagy
|
|
pharmaco‐
|
drug, medication
|
pharmacology
|
|
pharyng(o)‐
|
of or pertaining to the pharynx, the upper throat cavity
|
pharyngitis, pharyngoscopy
|
phleb(o)‐
|
