optic nerve |
either one of the two nerves that connect the retinas of the eyes to the brain. |
optics |
(used with a sing. verb) the science of sight and the properties of light. |
optimal |
most wanted or desirable; producing or likely to produce the best result; optimum. |
optimism |
the belief that everything will turn out well, or that there are good aspects of every situation. (Cf. pessimism.) [3 definitions] |
optimist |
one who usually or in a specific instance expects a good outcome. (Cf. pessimist.) [2 definitions] |
optimistic |
expecting or tending to expect favorable outcomes. [2 definitions] |
optimize |
to make the most effective use of (something), or to make as effective, perfect, or well-functioning as possible. |
optimum |
the situation, quantity, degree, or other condition that is most desirable. [2 definitions] |
option |
the right, power, or freedom to choose. [4 definitions] |
optional |
not required; left to one's choice. |
optoelectronic |
of or relating to electronic devices that are powered by light or produce light from electricity, or to the study of such devices. |
optoelectronics |
electronic devices that are powered by light or that produce light from electricity. [2 definitions] |
optometrist |
one who practices optometry. |
optometry |
the profession of examining eyes, diagnosing defects in eyesight, and prescribing corrective lenses or exercises. |
opulence |
the condition of being opulent. [2 definitions] |
opulent |
having or displaying wealth and luxury. [2 definitions] |
opus |
a work of fine or literary art, esp. a musical composition numbered to indicate its chronological place in the composer's works. |
-or1 |
a variant of -er1. |
-or2 |
activity; quality; condition; characteristic. |
OR1 |
abbreviation of "Oregon," a northwestern U.S. state on the Pacific coast between Washington and California. |
OR2 |
abbreviation of "operating room." |