A device with a mesh bottom to separate, in a granular material, larger particles from smaller ones, or to separate solid objects from a liquid.
A process, physical or abstract, that arrives at a final result by filtering out unwanted pieces of input from a larger starting set of input.
An intern who lets too many non-serious cases into the emergency room.
A person, or their mind, that cannot remember things or is unable to keep secrets.
A collection of morphisms in a category whose codomain is a certain fixed object of that category, which collection is closed under precomposition by any morphism in the category.
To concede; let in
To strain, sift or sort using a sieve.