Codecs

Part of speech: noun

Pronunciation: /ˈkəʊdɛks/

Definitions

1. A method or software component used for encoding and decoding digital data streams, often for media formats such as video or audio
2. A technological mechanism that compresses and decompresses digital signals or files for efficient storage and transmission
3. A system that employs algorithms to convert media formats from one type to another, enabling playback or editing of various content types

Etymology: "Codecs" is the plural of "codec," a term from digital technology, and it is a blend rather than a word with any older lineage. It is a syllabic abbreviation of "coder-decoder," the name for a device or program that encodes data into a compact form and later decodes it back for use. Video and audio files, for instance, are typically stored using a codec. The formation follows the pattern of "modem," itself a blend of "modulator" and "demodulator," the two functions a single device performs. "Codec" applies the same logic to encoding and decoding, which is why the word is built from the first syllables of each half of the pair rather than from any classical root. Its meaning is therefore entirely modern, tied to the rise of digital media, and the word has no older sense to trace.