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stratum
 stratum
math. stratum

to phrases
stratum ['strɑ:təm] n
math. stratum
transp. lager
 English thesaurus
STRATA ['strɔ:tə] abbr.
abbr., mil. Simulator Training Research Advanced Testbed for Aviation
abbr., scottish Simulator Training Advanced Test-bed for Aviation
strata ['strɔ:tə] abbr.
abbr., oil strat
stratum: 32 phrases in 10 subjects
Agriculture2
Communications1
Construction1
Earth sciences1
General4
Life sciences7
Mathematics3
Medical7
Natural sciences2
Statistics4