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Medical Terminology: Prefixes

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  • a/an: without, lack of
  • ab: away from
  • abdomi: referring to abdomen
  • acro: an extremity
  • ad: to, toward
  • adeno: referring to gland
  • ana: up, back, again
  • angio: referring to vessel
  • ante: before, forward
  • anti: against, opposed to
  • arterio: referring to artery
  • arthro: referring to a joint
  • auto: self
  • bi, bis: twice, double, in two’s
  • bio: life
  • blasto: referring to germ or cell
  • blepharo: referring to an eyelid
  • brady: slow
  • branchy: short, around
  • carcino: malignant
  • circum: around
  • co, col, com, con: with, together
  • contra: against, opposite
  • cyano: blue
  • di: twice, double
  • dia: through, between, completely
  • de: down from
  • dors: back
  • dys: difficult, painful, abnormal
  • ecto, ectomy: to cut out; remove
  • electro: pertaining to electricity
  • end: inside
  • endo: in, inner [layer]; within; inside of
  • epi: upon, on, above
  • erythro: referring to anything red or erythrocytes (red blood cells)
  • eu: easy, good, normal
  • exo: outside, outer
  • extra: outside; in addition to
  • glyco: sugar
  • hemi: half
  • heter: other, different
  • homeo, homo: same, similar, alike
  • hydro: water
  • hyper: beyond, excessive, over
  • hypo: less, under, below, deficient
  • infra: beneath, below
  • inter: between, among
  • intra: within
  • iso: equal, like
  • itis: inflammation
  • kinetic: movement
  • latero: side
  • leuko: anything white or leukocytes (white blood cells)
  • leuko: white
  • litho: referring to a stone
  • macro: large, great
  • mal: bad, abnormal
  • med, medi: middle
  • mega, megal: great, large
  • melano: black
  • micro: small
  • mono: one
  • morph: shape
  • myopathy: damage to the muscle
  • mega, megaly: enlargement
  • neo: new
  • noct: night
  • oligo: little, deficient
  • para: near, beside, apart from, by the side of
  • patho: disease
  • per: through
  • peri: outer [layer], around
  • poly: much, many, multiple
  • post: after, behind
  • pre, pro: before, preceding, in front of
  • pseudo: false
  • quad, quadri, quar, quat: four, in fours
  • retro: backward, located behind
  • sclera, sclero: hard; or related to schlera
  • semi: half
  • sub: below, beneath, under
  • super: above, over
  • tachy: fast
  • trans: across, through, beyond
  • tri: three, in three’s
  • uni: one; single or singly

Reference

Bliven, K. (2014, May 29). KINE 5003: Functional anatomy, terminology [PDF].

Des Moines University, Matz, D., & Dyche, W. (n.d.). Online Medical Terminology Course. Retrieved from https://www.dmu.edu/medterms/

Jenkins, G., & Tortora, G. J. (2012). Anatomy and Physiology: From Science to Life, 3rd Edition International Stu. John Wiley & Sons.

Medical Terminology [PDF]. (n.d.). Retrieved from http://samples.jbpub.com/9780763779306/Medical%20Terminology.pdf