A contour line (also isoline or isarithm) of a function of two variables is a curve along which the function has a constant value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 6 words with the pattern I-AR----. That is, eight letter words with 1st letter I and 3rd letter A and 4th letter R. In alphabetical order, they are:

igarapes

inarable

inarched

inarches

inarming

isarithm

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern --A-IT-M. That is, eight letter words with 3rd letter A and 5th letter I and 6th letter T and 8th letter M. In alphabetical order, they are:

isarithm

placitum

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ISA--T--. That is, eight letter words with 1st letter I and 2nd letter S and 3rd letter A and 6th letter T. In alphabetical order, they are:

isarithm

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-AR---M. That is, eight letter words with 1st letter I and 3rd letter A and 4th letter R and 8th letter M. In alphabetical order, they are:

isarithm