The Collaborative International Dictionary
Polytechnical
Polytechnical \Pol`y*tech"nic*al\, a. Polytechnic.
Wiktionary
polytechnical
a. polytechnic
Usage examples of "polytechnical".
How reliable a memorizer of atomic information was David Greenglass, an ordinary-level machinist, not a scientist, who bad taken six courses at Brooklyn Polytechnical Institute and flunked five of them?