This is the 7132nd most frequent Japanese word.
ロイコ
"ロイコ" (roiko) is a transliteration of "leuko," meaning "white" or "pale," often used in scientific contexts like "leukocyte" (white blood cell).
Proper noun usage where 'ロイコ' is employed as a name.
彼は新しいペットにロイコと名付けた。
He named his new pet Roiko.
Scientific term usage where 'ロイコ' refers to 'leukocytes'.
彼女はロイコの概念について詳しく説明した。
She explained the concept of leukocytes in detail.
Fictional character usage emphasizing 'ロイコ' as a creative designation.