1) General subject: auditorial, check (check experiment - контрольный опыт), control, controlling, examining, master, means test, monitor, pilot, test, verificatory
2) Engineering: checking, telltale, watch dog
3) Mathematics: regulating
4) Religion: audit
5) Railway term: answer-back signal (сигнал)
6) Economy: check-out
7) Information technology: reference
8) Business: testing
9) Network technologies: watchdog
10) Polymers: monitoring
11) Automation: proving
12) Quality control: supervisory
13) Makarov: nontreated (о делянке), untreated (о делянке)
Универсальный русско-английский словарь. Академик.ру. 2011.