otolith
simple past tense and past participle of round down
plural of silver moth
(zoology) A small particle, comprised mainly of calcium carbonate, found in the inner ear of vertebrates, being part of the balance sense.
A Nilotic language of Kenya and Tanzania.
海洋生物学者は、魚の年齢を判定するために、顕微鏡で耳石を慎重に調べた。
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