--- a/dimentions.rst	Mon Feb 08 12:34:03 2010 +0200
+++ b/dimentions.rst	Tue Feb 23 21:07:45 2010 +0200
@@ -19,6 +19,12 @@
 
   http://en.wikipedia.org/wiki/Pixels_per_inch
 
+* lpi
+
+lines per inch.
+
+  http://en.wikipedia.org/wiki/Lines_per_inch
+
 * bpp
 
 bits per pixel, color depth.