A point in which the rays of light meet, after being reflected or refrcted, and at which the image is formed; as, the focus of a lens or mirror., A point so related to a conic section and certain straight line called the directrix that the ratio of the distace between any point of the curve and the focus to the distance of the same point from the directrix is constant., A central point; a point of concentration., To bring to a focus; to focalize; as, to focus a camera.
Amber warning light on ford focus
focus
The literal meaning of the Latin word 'focus' is fireplace. By extension, the word may mean an 'altar fire'. And it even may take on the meaning of a 'funeral pyre'.
to sharpen your memory, focus your attention and brighten your future..
The chameleon is a lizard with separate eyes, meaning it can focus on two things at once
To forget about material objects focus on what is left...
Accommodation
This is an idiom meaning to narrow your focus down. It can also mean to narrow your aim and focus on one thing to hit. Picture the zero as a target and you get the idea of the idiom.
it comes from a latin word meaning hearth or fireplace so central Italy
Astigmatism
ametropiaametropia
The coarse focus on a microscope is used to adjust the distance between the lens and the specimen quickly. It is typically used first to bring the specimen into view before fine-tuning with the fine focus.