аблација

The removal, isolation, or destruction of heart muscle cells that cause electrical conduction problems; a procedure to destroy abnormal cells by using radiofrequency (RF) energy ...

аблација на срце

Dispositivos médicos; Equipos de cardiología

A procedure that neutralizes (or ablates) the specific cells in the heart that cause an arrhythmia. Also called cardiac catheterization.

ахроматска леќа

Astronomía; Astronomía general

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by ...

активна галаксија

Astronomía; Astronomía general

1) Active galactic nuclei are very luminous. Their energy output is in two forms: nonthermal continuum and thermal emission line. 2) Any galaxy which is emitting large quantities ...

активна оптика

Astronomía; Astronomía general

Controlling the shape of a telescope mirror at a relatively slow rate.

единица на забрзување

Astronomía; Astronomía general

A unit for measuring acceleration, which is metre per second squared.

зголемување

Astronomía; Astronomía general

1) A process by which a star accumulates matter as it moves through a dense cloud of interstellar gas; or, more generally, whereby matter surrounding a star flows toward it (as in ...