siphon
サイフォン
解説 Definition
siphon は液体を一方の容器から別の場所へ移すための管や仕組みを指す名詞です。日本語の「サイフォン」はコーヒー器具を指すことが多いですが、英語の siphon はより広く、液体を移す装置や原理にも使われます。
A tube or device used to transfer liquid from one container or level to a lower one through a continuous column of liquid. The word can also refer to specialized equipment, including a glass coffee-brewing apparatus.
覚え方のコツ Memory Tip
siphon はギリシャ語由来の「管」で、英語ではコーヒー器具だけでなく、液体を別の場所へ移す管や仕組み全般を指す。use a siphon to transfer water の形で、液体が満たされた管を通って高い側から低い側へ移る場面を思い描く。
Think beyond the Japanese coffee-related use of サイフォン. In English, a siphon is broadly a tube or device for transferring liquid, as in use a siphon to move fuel or water. Picture a liquid-filled tube leading from a higher container to a lower one, with the flow continuing once established. The word’s ancient meaning was simply a pipe or tube, which matches its modern physical shape. Keep the noun and verb distinct in context: a siphon is the device, while to siphon means to draw or transfer liquid through it.
例文
The mechanic used a siphon to move fuel into a safe container.
整備士はサイフォンを使って、燃料を安全な容器に移しました。
A simple siphon can transfer water without a pump.
簡単なサイフォンなら、ポンプなしで水を移せます。
The glass siphon on the shelf is for making coffee.
棚にあるガラス製のサイフォンは、コーヒーを入れるためのものです。
siphon の類義語・関連語
siphon の語源・成り立ち Etymology
siphon はラテン語 sipho を経て、ギリシャ語 siphon「管・筒」に由来します。関連語は siphonic と siphoned で、液体を細い管で吸い上げ移す道具を指したため、そのまま「サイフォン」という名になりました。
Siphon entered English through Latin sipho from Greek siphōn, meaning “pipe” or “tube.” The earliest sense referred directly to a tubular device, and the word later became associated with transferring liquid through a bent tube between different levels. Modern technical and everyday uses retain that physical image. The same base appears in siphonic, describing action or equipment involving a siphon, and in the verb siphon, “to transfer through such a tube.”
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