内ない生せい胞ほう子しないせいほうしじ字FuriganaMeanings1nounendosporebiology›Biology term: a dormant, tough, non-reproductive structure produced by certain bacteria. Compare 芽胞 (spore in a broader sense).See also: 芽胞一いち部ぶの細さい菌きんは、環かん