1. A constant factor in a function of a variable quantity.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• moduels,
• modells,
• modulues,
• modulers,
• modulars,
• modulaur,
• mosules,
• modulels,
• moduals,
• moduless,
• mdules,
• modums,
• moduls,
• modues,
• modulesk,
• modbus,
• modles,
• modeles,
• modelis,
• modiules

• modiolus.

The adjective form of the word "modulus" is "modular".

The plural of the "modulus" can be the "moduli".

The singular of the "modulus" can be the "modulus".