grounded
接地された
解説 Definition
grounded は ground（接地する）の過去形・過去分詞で、形容詞として「接地された」という意味です。電気機器や配線が安全のため地面につながれている状態を表します。
Electrically connected to the earth or to another reference point so that excess current can flow away safely. The adjective commonly describes outlets, wires, machines, plugs, and electrical systems designed to reduce shock or equipment damage.
覚え方のコツ Memory Tip
ground に -ed が付いた過去分詞形で、語末が /d/ のため -ed は /ɪd/ と発音し、/ˈɡraʊndɪd/ となります。a grounded outlet、the wire is grounded の形で、電気を安全に地面へ逃がす接続を思い浮かべましょう。この語義では「現実的な」や「外出禁止の」という別義と混同せず、電気設備の文脈を確認します。
Grounded is the past participle of ground used here as an electrical adjective. Since ground ends in /d/, the -ed ending is pronounced /ɪd/: /ˈɡraʊndɪd/. Picture a grounded outlet, a grounded wire, or a machine grounded for safety. The memory core is a deliberate connection to the ground that gives unwanted electrical current a safer path. Context is important because grounded can also mean sensible and realistic, prevented from flying, or punished by being kept at home. Words such as outlet, wire, device, electrical, and safety signal the electrical meaning intended here.
例文
The machine is grounded for safety.
その機械は安全のため接地されています。
Use a grounded outlet for this device.
この装置には接地されたコンセントを使ってください。
The technician checked that the wire was grounded.
技術者はその線が接地されていることを確認しました。
grounded の類義語・関連語
類義語
grounded の語源・成り立ち Etymology
古英語grund（地面・底）に接尾辞-edが付いた形。「地に足がついた→現実的な・落ち着いた」の意に発展。語根はゲルマン祖語*grundu-（底）。関連語にgroundwork（基礎）、underground（地下）がある。
Grounded is formed from ground and -ed. Ground comes from Old English grund, meaning the bottom, foundation, or surface of the earth, from a Germanic source. The electrical use developed from the physical earth: a conductor can be connected to the ground as a common reference or a path for fault current. In North American usage this process is called grounding; British technical usage often uses earth and earthed instead.
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