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optical ['ɔptɪk(ə)l] abbr.
abbr. o
abbr., adv. optical effect
abbr., polym. opt.
optical: 189 phrases in 21 subjects
Antennas and waveguides31
Communications3
Earth sciences8
Electronics29
General9
Health care2
Industry8
Information technology9
Life sciences2
Lighting other than cinema9
Medical2
Microsoft5
Natural sciences2
Patents57
Piezoelectric crystals1
Power lines1
Radio2
Technology2
Thermal Energy1
Transport3
Video recording3