Oxford Advanced American Dictionary

Definition of sieve noun from the Oxford Advanced Learner's Dictionary

sieve

noun
sieve pronunciation English sɪv sieve pronunciation American sɪv
 
a tool for separating solids from liquids or larger solids from smaller solids, made of a wire or plastic net attached to a ring. The liquid or small pieces pass through the net but the larger pieces do notPress the apricot jam through a sieve and stir in one tablespoon of cold water.
Idioms

have a memory/mind like a sieve

(informal) to have a very bad memory; to forget things easily