照射された
解説 Definition
irradiated は irradiate（放射線などを照射する）の過去形・過去分詞です。食品や物質、患部などが放射線や強い光を当てられた状態を表します。
Irradiated is the past tense and past participle of irradiate. It describes food, material, tissue, or another object that has been deliberately exposed to radiation or powerful light, often for treatment, testing, sterilization, or preservation.
覚え方のコツ Memory Tip
原形 irradiate /ɪˈreɪdieɪt/ の語末 e を残して -d を付け、irradiated /ɪˈreɪdieɪtɪd/。語尾が /t/ なので -ed は /ɪd/ と発音する。irradiated food、irradiated samples の形で、「放射線や強い光を意図的に当てて処理された」状態を覚える。
Begin with irradiate /ɪˈreɪdieɪt/. Since the verb ends in silent e, its regular past form adds only -d: irradiate → irradiated /ɪˈreɪdieɪtɪd/. The base ends in /t/, so the past ending is pronounced /ɪd/. Link the word with ray and radiation: something irradiated has had radiation or strong light directed at it. Common combinations include irradiated food, irradiated samples, and irradiated tissue. The term describes controlled exposure and does not by itself mean that the object has become radioactive; the context and type of radiation matter.
例文
The samples were irradiated in the laboratory.
その試料は実験室で照射されました。
Irradiated food is treated to reduce harmful bacteria.
照射食品は有害な細菌を減らすために処理されています。
The doctor explained why the area had been irradiated.
医師はなぜその部位に照射が行われたのかを説明しました。
irradiated の類義語・関連語
類義語
対義語
紛らわしい語
irradiated の語源・成り立ち Etymology
irradiated は irradiate の過去分詞で、ラテン語 irradiare「光線を放つ・照らす」に由来する。in-「中へ」＋ radius「光線・棒」から成り、「光線を中へ当てる」が核なので、「照射された」という意味になる。関連語は radiation, radius。
Irradiated is the past tense and past participle of irradiate, from Latin irradiare, meaning to shine upon or illuminate. The Latin formation combines in-, assimilated to ir- before r, with radius, meaning a ray, beam, or spoke. Its literal image is therefore that of directing rays onto or into something. Modern scientific and medical use commonly refers to deliberate exposure to ionizing radiation, while broader contexts may involve intense light.
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