Words beginning with O

Of or relating to operations, especially military operations.

Effectual or important.

plural of ophan

Ophiophobia; a fear of snakes.

A locality in the Cabonne council area, central New South Wales, Australia.

A zodiacal constellation of the northern summer said to depict a man (Asclepius) holding a serpent; the serpent is the constellation…

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A medical doctor specializing in the eye: deficiencies of vision requiring correction, and diseases. Compare optometrist.

The anatomy, functions, pathology, and treatment of the eye.

harvestmen

Any of the natural substances, such as an endorphin, released in the body in response to pain; an endogenous opioid.

Any American marsupial of the family Didelphidae in the order Didelphimorphia.

plural of opportunity

A chance for advancement, progress or profit.

Located directly across from something else, or from each other.

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To choose; select.

The best, most favourable or desirable, especially under some restriction.

A tendency to expect the best, or at least, a favourable outcome.

Expecting the best in all possible ways.

The design and operation of a system or process to make it as good as possible in some defined sense.

To act optimistically or as an optimist.

The best or most favorable condition, or the greatest amount or degree possible under specific sets of comparable circumstances.

A person trained and skilled in examining and testing the eyes for defects, in order to prescribe corrective lenses or treatment.

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A shrine dedicated to some prophetic deity.

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Relating to the mouth.

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