Third-person singular simple present indicative form of focalize

present participle of focalize

To focus, or to adjust a focus / To sharpen an image by focusing / To concentrate on a particular location; to localize

plural of focal

A focal entity, implying something that is different from its surroundings.

(optics) A focus; a point at which rays of light or other radiation converge. / The centre of any activity. / (art, aesthetics) A feature that attracts particular attention.

(optics) A measure of how strongly an optical system converges or diverges light, the inverse of optical power. In the simple case of a single convex lens, it is the distance along the optical axis from the principal plane of the lens to the lens's focal point (where, for instance, the film would be placed in a camera). For more complex or multi-element optical systems, focal length need not correspond to any obvious measurable physical distance.

(geology) The depth below the Earth's surface of the hypocentre of an earthquake. / (optics) The field of view of a camera that is in sharp focus.

(biochemistry) An assembly of protein that mediate signalling

plural of focal length