2) dihedral. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics 1. Formed by or having two plane faces; two-sided. 2. Relating to, having, or forming a dihedral angle. 1. Mathematics a. A dihedral angle. b. A dihedral...

3) affine. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics 1. Of or relating to a transformation of coordinates that is equivalent to a linear transformation followed by a translation. 2. Of or relating to the...

4) biquadratic. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics Of or relating to the fourth degree. An algebraic equation of the fourth degree....

5) numerator. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...1. Mathematics a. The expression written above the line in a common fraction to indicate the number of parts of the whole. b. An expression to be divided by another;...

6) conformal. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...1. Mathematics Designating or specifying a mapping of a surface or region upon another surface so that all angles between intersecting curves remain unchanged. 2....

7) semigroup. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics A set for which there is a binary operation that is closed and associative....

8) isosceles. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics Having two equal sides: an isosceles triangle. Late Latin soscels, from Greek soskels : so-, iso- + skelos, leg....

9) mod 2. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics modulus...

10) evolute. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...Mathematics The locus of the centers of curvature of a given curve. From Latin voltus, past participle of volvere, to unroll. See evolve....