n. Acous., Cathod Ray Tubes, Light, etc.नाभीयन (न.)

n. (pl. foci or focuses) Light, etc. (meeting-point of rays of Light, heat, etc. नाभि (स्त्री.) cf. centre v.t. & i. (to cause to come together; come together at a focus; to concentrate) नाभीयन करणे, नाभीयन होणे

n. (also focometer) (an instrument for measuring either the visual or the photographic focal length of an objective or of another optical system) नाभिमापी (पु.)

n. pl. (sing. focus) नाभी (स्त्री.अ.व.)

v.t. (to adjust the focus of) नाभीयन करणे

n. नाभीयन करणे (न.)

Light नाभीय बिंदु

Light नाभीय प्रतल

नाभीय रेषा

Light (as, the distance from the principal point of a lens or concave mirror to the principal focus) नाभीय अंतर