‐logy
denotes the academic study or practice of a certain field
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haematology, urology
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lymph(o)‐
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lymph
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lymphedema
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lys(o)‐, ‐lytic
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dissolution
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lysosome
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‐lysis
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destruction, separation
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paralysis
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macr(o)‐
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large, long
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macrophage
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‐malacia
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softening
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osteomalacia
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mammill(o)‐
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of or pertaining to the nipple
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mammillitis
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mamm(o)‐
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of or pertaining to the breast
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mammogram
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manu‐
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of or pertaining to the hand
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manufacture
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mast(o)‐
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of or pertaining to the breast
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mastectomy
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meg(a)‐, megal(o)‐, ‐megaly
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enlargement, million
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splenomegaly, megametre
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melan(o)‐
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black colour
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melanin
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mening(o)‐
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membrane
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meningitis
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meta‐
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after, behind
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metacarpus
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‐meter
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instrument used to measure or count
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sphygmomanometer
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metr(o)‐
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pertaining to conditions of the uterus
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metrorrhagia
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‐metry
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process of measuring
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optometry
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micro‐
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denoting something as small, or relating to smallness
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microscope
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milli‐
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thousandth
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millilitre
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mon(o)‐
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single
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infectious mononucleosis
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morph(o)‐
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form, shape
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morphology
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muscul(o)‐
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muscle
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musculoskeletal system
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my(o)‐
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of or relating to muscle
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myoblast
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myc(o)‐
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fungus
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onychomycosis
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myel(o)‐
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of or relating to bone marrow or spinal cord
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myeloblast
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myri‐
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ten thousand
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myriad
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myring(o)‐
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eardrum
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myringotomy
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narc(o)‐
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numb, sleep
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narcolepsy
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nas(o)‐
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of or pertaining to the nose
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nasal
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necr(o)‐
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death
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necrosis, necrotising fasciitis
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neo‐
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new
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neoplasm
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nephr(o)‐
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of or pertaining to the kidney
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nephrology
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neur(i)‐, neur(o)‐
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of or pertaining to nerves and the nervous system
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neurofibromatosis
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normo‐
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normal
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normocapnia
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ocul(o)‐
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of or pertaining to the eye
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oculist
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odont(o)‐
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of or pertaining to teeth
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orthodontist
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odyn(o)‐
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pain
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stomatodynia
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‐esophageal, esophag(o)‐
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gullet
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gastroesophageal reflux
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‐oid
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resemblance to
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sarcoidosis
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‐ole
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small or little
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arteriole
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olig(o)‐
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denoting something as ‘having little, having few’
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oliguria
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o.m.
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omni mane
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every morning
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‐oma (sing.), ‐omata (pl.)
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tumour, mass, collection
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sarcoma, teratoma
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o.n.
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omni nocte
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every night
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onco‐
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tumour, bulk, volume
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oncology
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onych(o)‐
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of or pertaining to the nail (of a finger or toe)
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onychophagy
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oo‐
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of or pertaining to an egg, a woman’s egg, the ovum
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oogenesis
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oophor(o)‐
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of or pertaining to the woman’s ovary
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oophorectomy
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ophthalm(o)‐
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