Medical Prefixes that Describe the Quantity or Number

In medical terms, the numerical prefix gives a hint to the amount or number of the term.

You will learn the prefixes used for these medical terms and their equivalent numbers in this quiz.

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Prefix Number Example Word
nulli- none nulliparous
hemi- half or partial hemisphere
semi- half or partial semisolid
multi- many multivitamins
poly- many polyuria
prim(i)- first primigravida
hapl(o)- one, single haploid
mon(o)- one, single monocyte
uni- one, single unicellular
bi- two, double bipedal
di- two, double diacid
dipl(o)- two, double diplopia
tri- three tricuspid
quadr(i)-, four quadriplegia
tetr(a)- four Tetralogy of Fallot
pent(a)- five pentadactyl
hex(a)- six hexahydrate
hept(a)- seven heptapeptide
oct(o)-, oct(a)- eight octophobia
nona-, noni- nine nonigravida
deci- ten decibel
cent(i)- hundred centigrade
milli- thousand millicalorie

  • Question of

    Find the prefix number.

    • none
    • half or partial
    • many
    • first

    Correct Wrong

    nulli- is a prefix that means "none" . Example is the word nulli/parous, nulli- is a prefix that means "none", -parous is a suffix that means "relating to number of times a woman has given birth". A nulliparous is a woman who never has given birth.

  • Question of

    Find the prefix number.

    • half or partial
    • many
    • first
    • two, double

    Correct Wrong

    The prefix semi- means "half" or "partial". Example is the word semi/solid, semi- is a prefix that means "half or partial", the word solid is a substance with a definite shape and volume.  A semisolid is characterized by properties that are halfway between those of a solid and those of a liquid.

  • Question of

    Find the prefix number.

    • half or partial
    • none
    • many
    • first

    Correct Wrong

    The prefix hemi- means "half" or "partial". Example is the word hemi/sphere, hemi- is a prefix that means "half or partial", the word root sphere refers to "an object shaped like a ball (like the moon)".  The cerebral hemisphere consists of the right and left halves of the cerebrum.

  • Question of

    Find the prefix number.

    • many
    • half or partial
    • two, double
    • four

    Correct Wrong

    The prefix poly- means "many". Example is the word poly/uria, poly- is a prefix that means "many", -uria is a suffix that refers to "urine" or "urination".  Polyuria refers to excessive production of urine; it is one of the symptoms of diabetes.

  • Question of

    Find the prefix number.

    • many
    • one, single
    • two, double
    • five

    Correct Wrong

    The prefix multi- means "many". Example is the word multi/vitamin. Multi- is a prefix meaning "many", vitamins are substances our bodies require in order to develop and function normally. Multivitamins contain a combination of vitamins.

  • Question of

    Find the prefix number.

    • first
    • many
    • three
    • two, double

    Correct Wrong

    The prefix prim(i)- means "first". Example is the word prim(i)/gravida. Prim(i)- is a prefix meaning "first", -gravida is a suffix term that refers to "pregnant woman". A primigravida is a woman who becomes pregnant for the first time or who becomes pregnant once.  

  • Question of

    Find the prefix number.

    • one, single
    • two, double
    • seven
    • four

    Correct Wrong

    The prefix mon(o)- means "one" or "single". Example is the word mon(o)/cyte. Mon(o)- is a prefix meaning "single", -cyte is a suffix that refers to "cell". The monocyte is a white blood cell that has a single nucleus.

  • Question of

    Find the prefix number.

    • one, single
    • six
    • nine
    • thousand

    Correct Wrong

    The prefix uni- means "one" or "single". Example is the word uni/cellular. Uni- is a prefix meaning "single", cellular means "relating to, or resembling a cell". A single-celled organism is considered unicellular.

  • Question of

    Find the prefix number.

    • one, single
    • none
    • nine
    • eight

    Correct Wrong

    The prefix hapl(o)- means "one" or "single". Example is the word hapl/oid. Hapl- is a prefix that means "single", -oid is a suffix that means "resembling". The term haploid refers to a cell that contains only one set of unpaired chromosomes, such as an egg or sperm.

  • Question of

    Find the prefix number.

    • two, double
    • hundred
    • half or partial
    • six

    Correct Wrong

    The prefix di- means "two" or "double". Example is the word di/acidDi- is a prefix that means "double", and acid is a word root that pertains to "sour" or "acid". A diacid molecule is capable of neutralizing two protons. 

  • Question of

    Find the prefix number.

    • two, double
    • seven
    • first
    • ten

    Correct Wrong

    The prefix dipl(o)- means "two" or "double". Example is the word dipl/opia. Dipl- is a prefix that means "double", -opia is a suffix that refers to "vision". Diplopia is condition also known as double vision.

  • Question of

    Find the prefix number.

    • two, double
    • hundred
    • half or partial
    • none

    Correct Wrong

    The prefix bi- means "two" or "double". Example is the word bi/pedal. Bi- is a prefix that means "double", ped in this term is a word root that refers to "foot" and -al is a suffix that means "pertaining to". Bipedal refers to having two legs or two feet.

  • Question of

    Find the prefix number.

    • three
    • ten
    • five
    • half or partial

    Correct Wrong

    The prefix tri- means "three". Example is the word tri/cuspid. Tri- is a prefix that means "three", cuspid is a triangular flap of a heart valve. Three cusps make up the tricuspid valve, which prevents the backflow of blood from the right ventricle into the right atrium.

  • Question of

    Find the prefix number.

    • four
    • eight
    • thousand
    • one, single

    Correct Wrong

    The prefix quadr(i)- means "four". Example is the word quadr(i)/plegia. Quadr(i)- is a prefix that means "four",  -plegia is a suffix that pertains to paralysis. Quadriplegia is paralysis of all four limbs.

  • Question of

    Find the prefix number.

    • four
    • first
    • six
    • three

    Correct Wrong

    The prefix tetr(a)- means "four". Example is the word tetr(a)/logy. Tetr(a)- is a prefix that means "four",  -logy is a suffix that pertains to "study of". In Tetralogy of Fallot, four heart defects occur at birth (congenital).

  • Question of

    Find the prefix number.

    • five
    • eight
    • four
    • nine

    Correct Wrong

    The prefix pent(a)- means "five". Example is the word pent(a)/dactyl. Pent(a)- is a prefix that means "five",  -dactyl is a suffix that pertains to "fingers" or "toes". Pentadactyl is defined as having five digits on a limb.

  • Question of

    Find the prefix number.

    • six
    • thousand
    • four
    • eight

    Correct Wrong

    The prefix hex(a)- means "six". Example is the word hex(a)/hydr/ate. Hex(a)- is a prefix that means "six",  hydr is a word root that refers to "water" and -ate is a suffix that means "become". The hexahydrate is a chemical compound that consists of six molecules of water.

  • Question of

    Find the prefix number.

    • seven
    • nine
    • five
    • six

    Correct Wrong

    The prefix hept(a)- means "seven". Example is the word hept(a)/peptide. Hept(a)- is a prefix that means "seven",  the term peptide refers to a molecule that consists of two or more amino acids. Heptapeptide is consists of seven amino acids linked by peptide bonds.

  • Question of

    Find the prefix number.

    • eight
    • five
    • three
    • seven

    Correct Wrong

    The prefix oct(o)- or oct(a)- means "eight". Example is the word oct(o)/phobia. Oct(o)- is a prefix that means "eight", -phobia is a suffix that means "irrational fear". Octophobia is an irrational fear of the number eight.

  • Question of

    Find the prefix number.

    • nine
    • half or partial
    • none
    • eight

    Correct Wrong

    The prefix nona- or noni- means "nine". Example is the word noni/gravida. Noni- is a prefix that means "nine", gravida is a word root that refers to a "pregnant woman". A nonigravida is a woman who is pregnant for the ninth time.

  • Question of

    Find the prefix number.

    • ten
    • first
    • one, single
    • hundred

    Correct Wrong

    The prefix dec(a)- or dec(i)- means "ten". Example is the word dec(i)/bel. Dec(i)- is a prefix that means "ten", bel refers to a unit of comparison for communication power or sound intensity. Decibels are units of measurement of sound intensity that are one tenth of a bel on the logarithmic scale.

  • Question of

    Find the prefix number.

    • hundred
    • ten
    • half or partial
    • thousand

    Correct Wrong

    The prefix¬†cent(i)-¬†means "hundred". Example is the word cent(i)/grade. Cent(i)-¬†is a prefix that means "hundred", grade refers to "degree" or "rating". Centigrade temperature scale in which the freezing point of water is 0¬į and its boiling point is 100¬į at standard atmospheric pressure.¬†

  • Question of

    Find the prefix number.

    • thousand
    • hundred
    • half or partial
    • nine

    Correct Wrong

    The prefix milli- means "thousand". Example is the word milli/calor/i/e. Milli- pertains to "thousand", calor/i is a combining form that means "heat", and -e is a suffix that is used to form nouns. Millicalorie is one thousandth of a calorie (a unit of energy or heat).