Found in phrases

optically : 47 phrases in 19 subjects

Analytical chemistry	1
Antennas and waveguides	1
Automated equipment	2
Chemistry	7
Communications	7
Computers	1
Earth sciences	4
Electronics	6
Finances	1
General	1
Health care	1
Immigration and citizenship	2
Industry	1
Information technology	1
Mineralogy	2
Natural sciences	3
Patents	3
Radiation	1
Technology	2