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A
lid, also known as a cap, is part of a
containerPackaging is the science, art and technology of enclosing or protecting products for distribution, storage, sale, and use. Packaging also refers to the process of design, evaluation, and production of packages. Packaging can be described as a coordinated system of preparing goods for transport,...
, and serves as the cover or
sealA mechanical seal is a device which helps join systems or mechanisms together by preventing leakage , containing pressure, or excluding contamination.Seal types;*Induction sealing or cap sealing*Adhesive, sealant...
, usually one that completely closes the object.
Lids have been found on
potteryPottery is the ceramic ware made by potters. Major types of pottery include earthenware, stoneware, and porcelain. The places where such wares are made are called potteries. Pottery is one of the oldest human technologies and art-forms, and remains a major industry today...
dating back as far as 3100 BC.
The word is used metaphorically, as in "keeping the lid on the secret".
See also
- Paper cup#Lids — the various kinds of lids that are used on paper cups