1. polytechnical - Noun
2. polytechnical - Adjective
Polytechnic.
Source: Webster's dictionary“After lunch, Valero left Duncan Polytechnical High School and headed to a job where he’s paid as a regular employee. Source: Internet
Strunk first taught mathematics at Rose Polytechnical Institute in Terre Haute, Indiana in 1890–91. Source: Internet
Stieltjes Jr. went to university at the Polytechnical School in Delft in 1873. Source: Internet
The Azerbaijan Polytechnical Institute was founded. Source: Internet