Sis·y·phus 
(sĭsə-fəs)
(sĭsə-fəs)n.
Greek Mythology
Greek Mythology
A cruel king of Corinth condemned forever to roll a huge stone up a hill in Hades only to have it roll down again on nearing the top.
[Latin Sisyphus, from Greek Sisuphos.]
- optical character recognition
- optical computer
- optical disc
- optical disk
- optical fiber
- optical illusion
- 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