also: くろたま
noun
black ball
A ball that is black in color; can refer to a physical object like a marble or a ball used in games.
子供たちは黒玉を転がして遊んだ。
The children played by rolling black balls.
noun
black round sigil
A round black mark or symbol, often used in contexts like a black dot on a target or a black circle in a diagram.
的の中心に黒玉が描かれている。
A black circle is drawn at the center of the target.
noun
Refers to the black part of the eye; more commonly expressed as 黒目 (くろめ) in modern Japanese, but 黒玉 can appear in literary or poetic contexts.
彼女の黒玉のような瞳が印象的だった。
Her eyes, like black jewels, were striking.
noun
black candy
A type of traditional Japanese candy that is black in color, often made from brown sugar or black sesame.
祖母が作った黒玉は、素朴な甘さだった。
The black candy my grandmother made had a simple sweetness.
黒目 is the common word for the pupil or the dark part of the eye, while 黒玉 is a more literary or figurative term for the same.
Compound of 黒 (くろ, 'black') and 玉 (たま/だま, 'ball, jewel'). The reading くろだま is the standard rendaku form.