seal ‧ er /ˈsiːlə $ -ər/ BrE AmE noun
1 . [uncountable and countable] a substance that is put on the surface of something to protect it from air, water etc
2 . [countable] a person or ship that hunts ↑ seal s
seal ‧ er /ˈsiːlə $ -ər/ BrE AmE noun
1 . [uncountable and countable] a substance that is put on the surface of something to protect it from air, water etc
2 . [countable] a person or ship that hunts ↑ seal s
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012