spreader
散布機、拡散器；広める人
解説 Definition
物を広い範囲にまく人や道具、または広めるものを指す名詞。肥料や種をまく散布機の意味でよく使われるほか、情報・うわさ・病気・考え方などを周囲に広げる人や媒介物についても用いられる。
A spreader is a tool or machine used to distribute something over an area, such as seeds, salt, or fertilizer. It is common in farming, gardening, and road work. The word can also mean a person or thing that spreads something, such as news or disease, depending on the context.
覚え方のコツ Memory Tip
まず spread「広がる・広げる」が頭にあれば十分です。そこに「〜する人・道具」の -er が付くので、spreader は「広げる役のもの」。fertilizer spreader なら肥料散布機、rumor spreader ならうわさを広める人、disease spreader なら病気を広げる媒介。point は“面や範囲に広げる”感覚で、単に投げる scatterer より広がり方に意識が向きます。機械名にも人にも使える語だとまとめて覚えると定着しやすいです。
Start with `spread`, a very common word. Add `-er`, which often means a person or tool that does something. So a `spreader` is simply something or someone that spreads. This helps with both machine uses like `fertilizer spreader` and person uses like `rumor spreader`.
例文
The wind is a natural spreader of seeds across the landscape.
風は一帯に種を広げる自然の運び手だ。
She became a spreader of positive messages through social media.
彼女はソーシャルメディアを通じて前向きなメッセージを広める人になった。
The spreader tool helps distribute fertilizer evenly across the garden.
その散布機を使うと、庭全体に肥料を均等にまける。
spreader の類義語・関連語
spreader の語源・成り立ち Etymology
spreader は spread「広げる・まき散らす」に行為者を表す接尾辞 -er が付いた語です。spread は古英語系の語で、もともと「伸ばして広くする」感覚が核なので、spreader は散布機にも拡散器にもなるわけです。widespread や outspread も同じ語根です。
"Spreader" is built from the Old English verb "spread" and the suffix "-er," which often means a person or thing that does an action. The core idea of "spread" was to stretch out or make something wider. From that sense, "spreader" came to mean anything that puts things out over an area. Related English forms include "widespread" and "outspread."
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