focuser

As nouns the difference between terms and focuser

is that terms is while focuser is a device which allows one to adjust the focus of an instrument such as a telescope.

As nouns the difference between focus and focuser

is that focus is (countable|optics) a point at which reflected or refracted rays of light converge while focuser is a device which allows one to adjust the focus of an instrument such as a telescope.

As a verb focus

is to cause (rays of light, etc) to converge at a single point.

As nouns the difference between focuses and focuser

is that focuses is plural of lang=en while focuser is a device which allows one to adjust the focus of an instrument such as a telescope.

As a verb focuses

is third-person singular of focus.

As a noun focuser

is a device which allows one to adjust the focus of an instrument such as a telescope.

As an adjective focused is

centered or concentrated.

As a verb focused is

(focus).