1
- usu. with modifier a device or substance used to seal something, especially with a hermetic or an impervious seal密封装置, 密封物, 密封胶。
2
- （亦作sealer jar）Canadian a jar with a hermetic seal designed to preserve food such as fruit, pickles, and jams〈加〉（装水果、泡菜、果酱的）密封罐。