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Biology: Prefixes and Suffixes

Biology prefixes and suffixes are interesting. Understanding them makes it easier to understand unfamilar words.
Many of the words used in scientific subjects such as biology, medicine, and health sciences may initially seem to be long, complicated, and unfamiliar. This is partly because many technical terms are derived from Greek or Latin words not in common use in English.

Knowledge of the general meaning of a

  • prefix (that is the beginning part of a word)
    or
  • suffix (that is the end part of a word)

can make it easier to recognise and understand unfamiliar terms.

 

The following list is to assist younger students e.g. of GCSE Biology - as taught to UK students aged 14-16. It is about biology generally (not just animal or human biology), so includes terms about both plants and animals.

Source of
Prefix / Suffix

Term with meaning in English

Examples

autos = self

e.g. autotroph

bios = life

e.g. biology, biomass

bis = twice

e.g. binary fission, bicuspid valve

chloros = (pale) green

e.g. chlorophyll, chloropsia

chroma = colour

e.g. chromatopsia, chromosome (because it takes-up coloured stains)

dia = across

e.g. diaphragm, dialysis

dis = twice

e.g. dichromatic, diploid, dipeptide

ektos = outside

e.g. ectoparasite

epi = upon (above)

e.g. epicotyl, epidermis

exo = outside

e.g. excocytosis, exoskeleton

haima = blood

e.g. haemoglobin, haemophilia

heteros = other (different)

e.g. heterozygous

homos = same

e.g. homologous, homozygous

hypo = under

e.g. hypocotyl, hypothermia

inter = between

e.g. inter-cellular, intercostal

intra = within

e.g. intra-cellular, intra-uterine

kytos = vessel (a cell)

e.g. cytoplasm, erythrocyte, leucocyte

lipos = fat

e.g. lipase, lipid

lysis = dissolution

e.g. dialysis, lysozyme

mesos = middle

e.g. mesenteric, mesophyll

meta = after (change)

e.g. metamorphosis

mikros = little

e.g. micropyle, microvilli

morphe = form (shape)

e.g. metamorphosis, morphology

phagein = to eat

e.g. oesophagus, phagocyte

phyllon = leaf

e.g. chlorophyll, mesophyll

phyton = plant

e.g. phytoplankton, saprophyte

polys = many

e.g. polypeptide, polysaccharide

protos = first formed

e.g. protista, protoplasm

rhiza = root

e.g. rhizoid, rhizome

semi = half

e.g. semicircular canal, semilunar valves

sub = under

e.g. sub-cutaneous, subclavian, subsoil

sym- , syn- = together

e.g. symbiosis, synapse

treis = three

e.g. triceps brachii, tricuspid valve, tripeptide

trophe = food

e.g. autotroph, trophic level

unus = one

e.g. unicellular, unisexual

vas = vessel

e.g. vascular bundle, vaso-dilation, vasodilator

zoion = animal

e.g. zoology, zooplankton

zygon = yolk

e.g. homozygous, zygote

For more Latin words see the page of Latin Names of Bach Flowers.

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