What does SECM stand for?

Clementina - Ecuador - ICAO location identifier (ICLI)

Scanning Electrochemical Microscope

Scanning Electrochemical Microscopy (SAUS)

School of English Church Music - Later, RSCM

Secom General - NASDAQ symbol

Secom General Corp. - NASDAQ symbol (NQ)

Shop Equipment-Contract Maintenance - Military technology (DDF)