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- only individual words found (there may be no translations for some thesaurus entries in the bilingual dictionary)

optical ['ɔptɪk(ə)l] adj.
gen.	οπτική; οπτικό; οπτικός
med.	οπτικός (opticus)
optic ['ɔptɪk] adj.
industr., construct., met.	καλούπι για οπτικά
med.	οπτική (opticus); οπτικός (opticus)
English thesaurus
optical ['ɔptɪk(ə)l] abbr.
abbr.	o
abbr., adv.	optical effect
abbr., polym.	opt.
OPTIC ['ɔptɪk] abbr.
abbr.	Optical Properties Technical Information Center
abbr., el.	optical procedural task instruction compiler

optical flat: 3 phrases in 2 subjects

Earth sciences	1
Industry	2