Temperer

Tem'per·er noun One who, or that which, tempers; specifically, a machine in which lime, cement, stone, etc., are mixed with water.
Found on http://www.encyclo.co.uk/webster/T/23

Temperer

• (n.) One who, or that which, tempers; specifically, a machine in which lime, cement, stone, etc., are mixed with water.
Found on http://thinkexist.com/dictionary/meaning/temperer/
No exact match found