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32 Chapter 2

Text B. Scientific prefixes

Let's meet zetta, yotta, zepto and yocto. They are not fundamental particles, they are prefixes on the scientific scale of quantities denoting, respectively, a billion trillions, a trillion trillions, a billionth of a trillionth, respectively — укр. вiдповiдно and a trillionth of a trillionth. Nobody has found much practical use for them yet, but they exist if you need them, according to decisions of the Conference Generale des Poids et Mesures, the international body that meets every four years to govern the realm of scientific units.

101 deka or deca (da), from Greek deka ten,

10-1 deci (d), from Latin decimus, tenth

102 hecto (h), from Greek hekaton, hundred,

10-2 centi (c), from Latin centum, hundred

103 kilo (K),, from Greek chilioi, thousand

10-3 milli (m), from Latin mille, thousand

106 mega (M), from Greek megas, large ,

10-6 micro ,from Latin micro -(Greek micros), small

109 giga (G), from Greek gigas, giant,

10-9 nano (n),, from Latin nanus (Greek nanos), dwarf

1012 tera (T), from Greek teras, monster,

10-12 pico (p),, from Spanish pico or Italian piccolo, small

1015 penta (P), from Greek pente, five

10-15 femto (f),, from Danish-Norwegian femten, fifteen

1018 exa (E), from Greek hex, six

10-18 atto (a), from Danish-Norwegian atten, eighteen

1021 zetta (Z), from Latin septem, seven

10-21 zepto (z), from Latin septem, seven

1024 yotta (Y), from Greek or Latin octo, eight

10-24 yocto (y), from Greek or Latin octo. eight

Chapter 1 33

By learning the prefixes you will understand the meaning of words.

Prefix

Meaning

a - , ab -

not having

ambi -

Both

anti -

Against

bi -

having or involving two, coming or occurring twice

mono -, uni -

single, one

tri -

having or involving three, coming or occurring three times

by-

Secondary

co -, corn -, col -, con -, cor -

together with

dis -, mis -, mal -

not, bad, wrong,

ex-

out, from

extra -

beyond, outside

fore -

before (in time or order)

pre -, ante -

before, prior

contra -,

Against

in -, im -, ir -, il -, un -

Not

inter -

Between

micro -

Small

multi -, poly -

more than one or two, many

octo -, octa -

Eight

out -

to do better than

post -

After

pseudo -

not real, false

quadra -

four, one-fourth

retro -

Backward

semi -, hemi -, demi -

Half

sept-

Seven

sub -

under, below, beneath, underneath, lower

syn -

same, together

trans -

Across

over -

too much

under -

too little

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