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photogate
Language
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Edit
English
edit
Etymology
edit
From
photo-
+
gate
.
Noun
edit
photogate
(
plural
photogates
)
(
physics
)
A device that measures the
time
between
events
that
interrupt
an
infra-red
beam
Categories
:
English terms prefixed with photo-
English lemmas
English nouns
English countable nouns
en:Physics
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