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The example sentences of REFRACTORS in videos (1 in total of 1)

The Night Sky - Telescopes: A Buyer's Guide English (US)
at preposition or subordinating conjunction their possessive pronoun most adverb, superlative basic adjective , refractors proper noun, singular are verb, non-3rd person singular present a determiner simple adjective , closed verb, past tense tube noun, singular or mass with preposition or subordinating conjunction a determiner lens noun, singular or mass at preposition or subordinating conjunction one cardinal number end noun, singular or mass for preposition or subordinating conjunction collecting verb, gerund or present participle

Definition and meaning of REFRACTORS

What does "refractors mean?"
refractors

/rəˈfraktər/

noun
lens or other object which causes refraction.
other
.

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