a due refracts sound
refractor is telescope. correction_tape_refill is text_correction_product. correction_tape_refill is refill. refractometer is measuring_instrument. refresher is legal_fee. double_refraction is refraction. correction_tape_refill is tangible_thing. refractoriness is intractability. audible_sound_or_sound_sequence is transfer. producing_musical_sound is sound_emission.