1. (

• isometrics ,
• isometric_exercise

) muscle-building exercises (or a system of musclebuilding exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change) ;

1. (

• isometric

) related by an isometry ;

2. (

• isometric

) of or involving muscular contraction in which tension increases while length remains constant ;

3. (

• isometric ,
• isometrical

) having equal dimensions or measurements ;

4. (

• isometric

) of a crystal system characterized by three equal axes at right angles ;