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curvature

## curvature

```  2  definitions  found

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

Curvature  \Cur"va*ture\  (k?r"v?-t?r;  135),  n.  [L.  curvatura.  See
{Curvate}.]
1.  The  act  of  curving,  or  the  state  of  being  bent  or  curved;
a  curving  or  bending,  normal  or  abnormal,  as  of  a  line  or
surface  from  a  rectilinear  direction;  a  bend;  a  curve.
--Cowper.

The  elegant  curvature  of  their  fronds.  --Darwin.

2.  (Math.)  The  amount  of  degree  of  bending  of  a  mathematical
curve,  or  the  tendency  at  any  point  to  depart  from  a
tangent  drawn  to  the  curve  at  that  point.

{Aberrancy  of  curvature}  (Geom.),  the  deviation  of  a  curve
from  a  circular  form

{Absolute  curvature}.  See  under  {Absolute}.

{Angle  of  curvature}  (Geom.),  one  that  expresses  the  amount
of  curvature  of  a  curve.

{Chord  of  curvature}.  See  under  {Chord}.

{Circle  of  curvature}.  See  {Osculating  circle  of  a  curve},
under  {Circle}.

{Curvature  of  the  spine}  (Med.),  an  abnormal  curving  of  the
spine,  especially  in  a  lateral  direction.

or  osculatory  circle,  at  any  point  of  a  curve.

From  WordNet  r  1.6  [wn]:

curvature
n  1:  (medical)  a  curving  or  bending;  often  abnormal;  "curvature
of  the  spine"
2:  the  rate  of  change  (at  a  point)  of  the  angle  between  a  curve
and  a  tangent  to  the  curve
3:  the  property  possessed  by  the  curving  of  a  line  or  surface
[syn:  {curve}]
```