卵らん細さい胞ぼうらんさいぼうMeanings1nounovum; egg cellbiologyBiological term for the female reproductive cell. Used in scientific and medical contexts.卵らん細さい胞ぼうは女じょ性せいの生せい殖しょく細さい胞ぼうです。The ovum is the female reproductive cell.