Questions and Answers
Which prefix means 'without'?
An-
Which prefix means 'to or toward'?
Ad-
Which prefix means 'glandular'?
Adeno-
Which prefix means 'on both sides'?
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Which prefix means 'vessel'?
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Which prefix means 'before'?
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Which prefix means 'against'?
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Which prefix means 'joint'?
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Which prefix means 'self'?
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Which prefix means 'two'?
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Which prefix means 'half' or 'partially'?
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Which prefix means 'blood serum'?
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Which prefix means 'beneath' or 'under'?
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Which prefix means 'above'?
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Which prefix means 'fast' or 'rapid'?
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Which prefix means 'across' or 'through'?
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Which prefix means 'three'?
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Which prefix means 'one' or 'single'?
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Which prefix means 'urine'?
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Which prefix means 'vessel'?
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Which prefix means 'heart'?
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Which prefix means 'within'?
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Which prefix means 'red'?
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Which prefix means 'muscle'?
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Which prefix means 'nose'?
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Which prefix means 'skin'?
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Which prefix means 'kidney'?
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Which prefix means 'blood'?
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Which prefix means 'tongue'?
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Which prefix means 'before'?
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Which prefix means 'animal'?
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Which prefix means 'blood serum'?
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Which prefix means 'above'?
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Which prefix means 'fast' or 'rapid'?
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Which prefix means 'across' or 'through'?
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Which prefix means 'two'?
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Which prefix means 'urine'?
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Which prefix means 'vessel'?
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Which prefix means 'beneath' or 'under'?
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Which prefix means 'one' or 'single'?
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Which prefix means 'fast' or 'rapid'?
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Which prefix means 'across' or 'through'?
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Which prefix means 'urine'?
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Which prefix means 'vessel'?
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Which prefix means 'above'?
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Which prefix means 'beneath' or 'under'?
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Which prefix means 'blood serum'?
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Which prefix means 'one' or 'single'?
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Which prefix means 'animal'?
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Which prefix means 'blood'?
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Which prefix means 'around' or 'surrounding'?
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Which prefix means 'defective' or 'difficult'?
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Which prefix means 'between' or 'middle'?
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Which prefix means 'self'?
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Which prefix means 'above' or 'more'?
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Which prefix means 'below' or 'less'?
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Which prefix means 'before' or 'prior to'?
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Which prefix means 'fast' or 'rapid'?
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Which prefix means 'tissue'?
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Which prefix means 'one' or 'single'?
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Which prefix means 'stomach'?
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Which prefix means 'heart'?
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Which prefix means 'blood'?
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Which prefix means 'bone'?
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Which prefix means 'muscle'?
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Which prefix means 'blood serum'?
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Which prefix means 'above'?
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Which prefix means 'urine'?
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Which prefix means 'three'?
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Which prefix means 'one' or 'single'?
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Study Notes
Prefixes Used in Scientific Terms
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Prefixes are used in scientific terms to modify the meaning of a word.
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The prefix "a-" or "an-" means without, as in "a-cardia" (without a heart) or "an-aerobe" (without oxygen).
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The prefix "ab-" means away from, as in "ab-duction" (movement away from the midline of the body).
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The prefix "ad-" means to or toward, as in "ad-duction" (movement toward the midline of the body).
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The prefix "adeno-" means glandular, as in "adeno-pathy" (disease of a gland) or "aden-oma" (tumor of a gland).
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The prefix "ambi-" means both, as in "ambi-dextrous" (able to use both hands equally) or "ambi-valent" (having mixed feelings).
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The prefix "amphi-" means on both sides, as in "amphi-arthrosis" (a joint that allows movement in two directions) or "amphi-bia" (animals that can live in both water and land).
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The prefix "an-" means without, as in "an-encephaly" (a birth defect where the brain is missing) or "an-aerobe" (an organism that can survive without oxygen).
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The prefix "angio-" means vessel, as in "angio-logy" (the study of blood vessels) or "angi-oma" (a tumor made up of blood vessels).
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The prefix "ante-" means before, as in "ante-natal" (before birth) or "ante-mortem" (before death).
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The prefix "anti-" means against, as in "anti-gen" (a substance that triggers an immune response) or "anti-septic" (a substance that kills or prevents the growth of microorganisms).
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The prefix "arthro-" means joint, as in "arthro-pod" (an invertebrate animal with a segmented body and jointed limbs) or "arthro-logy" (the study of joints).
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The prefix "auto-" means self, as in "auto-lysis" (the breakdown of cells by their own enzymes) or "auto-genous" (produced by the organism itself).Common Medical Prefixes and Their Meanings
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Phlebo-: Prefix meaning "vein" used in terms like phlebo-sclerosis and phleb-itis
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Photo-: Prefix meaning "light" used in terms like photo-graph and photo-synthesis
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Pilo-: Prefix meaning "hair" used in terms like pilo-motor and pilo-nidal
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Platy-: Prefix meaning "broad or flat" used in terms like platy-podia and platy-rrhine
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Pleo-: Prefix meaning "many" used in terms like pleo-morphic and pleo-mastia
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Pneumo-: Prefix meaning "air" used in terms like pneumo-nia and pneumo-thorax
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Podo-: Prefix meaning "foot" used in terms like pod-iatry and pod-algia
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Polio-: Prefix meaning "gray" used in terms like polio-myelitis and poli-osis
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Poly-: Prefix meaning "many or much" used in terms like poly-neuritis and poly-uria
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Post-: Prefix meaning "after" used in terms like post-mortem and post-partum
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Pre-: Prefix meaning "before" used in terms like pre-natal and pre-molar
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Procto-: Prefix meaning "rectum" used in terms like procto-logy and proct-itis
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