se·man·tic 
(sĭ-măntĭk) also se·man·ti·cal (-tĭ-kəl)
(sĭ-măntĭk) also se·man·ti·cal (-tĭ-kəl)adj.
1. Of or relating to meaning, especially meaning in language.
2. Of, relating to, or according to the science of semantics.
[French sémantique, from Greek sēmantikos, significant, from sēmantos, marked, from sēmainein, sēman-, to signify, from sēma, sign.]
se·manti·cal·ly adv.
- optical isomer
- optically
- optically active
- optical maser
- optical phonon
- optical resonator
- optical scanner
- optical tweezers
- optic axis
- optic chiasma
- optic cup
- optic disk
- optician
- optic lobe
- optic nerve
- optics
- optic vesicle
- optima
- optimal
- optimally
- optimism
- optimist
- optimistic
- optimistically
- optimization