al·ter·nate angle(ôltər-nit, al-)
n.
One of a pair of nonadjacent angles on opposite sides of a transversal that cuts two lines. The angles are both exterior or both interior to the two lines.
alternate angleAngles 3 and 6 are alternate interior angles, as are angles 4 and 5. Angles 1 and 8 are alternate exterior angles, as are angles 2 and 7.
- irredeemably
- irredenta
- irredentism
- irredentist
- irreducibility
- irreducible
- irreducibleness
- irreducibly
- irrefragability
- irrefragable
- irrefragably
- irrefrangible
- irrefrangibly
- irrefutability
- irrefutable
- irrefutably
- irreg.
- irregardless
- irregular
- irregular galaxy
- irregularity
- irregularly
- irrelative
- irrelatively
- irrelevance