adj. - feeding on both plant and animal material.

- reading, observing, etc. Everything that comes one's way. omnivore n. Omnivorousness n. [latin voro devour]

adj. Iridescent. opalescence n.

adj. Generous.

adj. Accessible to new ideas; unprejudiced.

n. Theatre for operas.

research n. = *operational research.

n. Inflammation of the eye. [greek ophthalmos eye]

adj. Of or relating to the eye and its diseases.

- optician n. Optician qualified to prescribe as well as dispense spectacles etc.

n. - resistance, antagonism.

- being hostile or in conflict or disagreement.

- contrast, antithesis.

- a group or party of opponents or competitors. B (the opposition) chief parliamentary party opposed to that in office.

- act of placing opposite.

- diametrically opposite position of two celestial bodies. [latin: related to *position]

adj. - oppressing.

- (of weather) close and sultry. oppressively adv. Oppressiveness n.