媒体

• Reading: ばいたい
• Romaji: baitai
• Kanji breakdown: 媒 (bai) — intermediary, go-between; 体 (tai/karada) — body, substance
• Pronunciation: /ba.i.ta.i/

Meaning

Medium; carrier; a substance or channel through which something is transmitted, conveyed, or communicated. Includes physical media, biological vectors, and information media.

A noun used across physics, biology, communications, and media studies. In physics, a medium transmits waves (e.g. air for sound). In biology, a 媒体 (vector) carries and transmits a pathogen. In journalism and marketing, 広告媒体 refers to advertising channels. The word is broader and more formal than メディア, though the two are often interchangeable in media contexts.

Examples

1. 空気は音波を伝える媒体として機能するが、真空中では音は伝わらない。 Air functions as a medium that transmits sound waves, but sound cannot travel in a vacuum.
2. インターネットは情報を瞬時に世界中に届ける最も強力な媒体の一つだ。 The internet is one of the most powerful media for instantly delivering information around the world.
3. 蚊が媒体となってマラリア原虫を宿主から宿主へと運ぶ。 Mosquitoes serve as a medium, carrying the malaria parasite from host to host.

Usage Guide

Context: physics, biology, media, communications, marketing

Tone: neutral

Origin & History

Compound of 媒 (bai — go-between, intermediary) and 体 (tai — body, substance). 媒 originally referred to a matchmaker or intermediary, extended to anything that serves as an intermediate channel.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal