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Definition of
focal length noun
from the Oxford Advanced American Dictionary
focal length
noun
noun
(
physics
)
jump to other results
the distance between the center of a mirror or a
lens
and its
focus
See
focal length
in the Oxford Advanced Learner's Dictionary
Check pronunciation:
focal length
Nearby words
focal
adjective
focalize
verb
focal length
noun
focal point
noun
fo'c's'le