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Definition 2024

lossy ‎(comparative lossier, superlative lossiest)

(telecommunications) Of a communication channel, subject to loss of signal strength.
(power systems) Of an electricity transmission line, subject to various forms of power loss.
(of an algorithm for converting or compressing data) Reducing the amount of information in data.
JPEG is a lossy image compression format.

subject to loss of signal strength

subject to various forms of power loss

reducing the amount of information in data