browse words by letter
a b c d e f g h i j k l m n o p q r s t u v w x y z

## variable

```  3  definitions  found

From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]:

Variable  \Va"ri*a*ble\,  n.
1.  That  which  is  variable;  that  which  varies,  or  is  subject
to  change.

2.  (Math.)  A  quantity  which  may  increase  or  decrease;  a
quantity  which  admits  of  an  infinite  number  of  values  in
the  same  expression;  a  variable  quantity;  as  in  the
equation  x^{2}  -  y^{2}  =  R^{2},  x  and  y  are  variables.

3.  (Naut.)
a  A  shifting  wind,  or  one  that  varies  in  force.
b  pl  Those  parts  of  the  sea  where  a  steady  wind  is  not
expected,  especially  the  parts  between  the  trade-wind
belts.

{Independent  variable}  (Math.),  that  one  of  two  or  more
variables,  connected  with  each  other  in  any  way  whatever,
to  which  changes  are  supposed  to  be  given  at  will  Thus
in  the  equation  x^{2}  -  y^{2}  =  R^{2},  if  arbitrary
changes  are  supposed  to  be  given  to  x,  then  x  is  the
independent  variable,  and  y  is  called  a  function  of  x.
There  may  be  two  or  more  independent  variables  in  an
equation  or  problem.  Cf  {Dependent  variable},  under
{Dependent}.

From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]:

Variable  \Va"ri*a*ble\,  a.  [L.  variabilis:  cf  F.  variable.]
1.  Having  the  capacity  of  varying  or  changing;  capable  of
alternation  in  any  manner;  changeable;  as  variable  winds
or  seasons;  a  variable  quantity.

2.  Liable  to  vary;  too  susceptible  of  change;  mutable;
fickle;  unsteady;  inconstant;  as  the  affections  of  men
are  variable;  passions  are  variable.

Lest  that  thy  love  prove  likewise  variable.  --Shak.

His  heart,  I  know  how  variable  and  vain!  --Milton.

{Variable  exhaust}  (Steam  Eng.),  a  blast  pipe  with  an

{Variable  quantity}  (Math.),  a  variable.

{Variable  stars}  (Astron.),  fixed  stars  which  vary  in  their
brightness,  usually  in  more  or  less  uniform  periods.

From  WordNet  r  1.6  [wn]:

variable
adj  1:  liable  to  or  capable  of  change;  "rainfall  in  the  tropics  is
notoriously  variable";  "variable  winds";  "variable
expenses"  [ant:  {invariable}]
2:  marked  by  diversity  or  difference;  "the  varying  angles  of
roof  slope";  "nature  is  infinitely  variable"  [syn:  {varying}]
3:  (used  of  a  device)  designed  so  that  a  property  (as  e.g.
light)  can  be  varied;  "a  variable  capacitor";  "variable
filters  in  front  of  the  mercury  xenon  lights"
n  1:  something  that  is  likely  to  vary;  something  that  is  subject
to  variation;  "the  weather  is  one  variable  to  be
considered"
2:  a  quantity  that  can  assume  any  of  a  set  of  values  [syn:  {variable
quantity}]
3:  a  star  that  varies  noticeably  in  brightness  [syn:  {variable
star}]
4:  a  symbol  (like  x  or  y)  that  is  used  in  mathematical  or
logical  expressions  to  represent  a  variable  quantity
```