phosphorescent
蓄光性の
解説 Definition
蓄光性の、暗い中で光を放つ。光を吸収して暗闇で発光する性質。
Phosphorescent means able to glow in the dark after being exposed to light. It is used for materials like paint, signs, or toys that keep shining for some time after the light source is gone. The word describes a stored-light effect, not an active light source.
覚え方のコツ Memory Tip
"photo-" や "phosphor" を見たらまず「光」を連想すると覚えやすい語です。phosphorescent は fluorescent と形が近いのでセットで整理すると定着します。fluorescent は光を当てている間に明るく見える感じ、phosphorescent は光を吸収したあと暗い所でもしばらく残って、じわっと光る感じ。"glow-in-the-dark" の標識、蓄光シール、夜光塗料を思い浮かべると使いどころまで一緒に覚えられます。
This word looks close to `fluorescent`, so remembering the contrast helps. `Phosphorescent` is the kind of light that stays glowing for a while after the light source is gone. Think of `glow-in-the-dark` signs or stickers.
例文
The phosphorescent paint on the exit sign glowed brightly in the darkness.
出口標識の蓄光塗料は暗闇で明るく光った。
The phosphorescent coating on the staircase helps people navigate safely in the dark.
階段の蓄光コーティングは人々が暗闇で安全に移動するのに役立つ。
Phosphorescent materials are used in emergency signage and safety equipment.
蓄光材料は緊急標識と安全機器に使用される。
phosphorescent の類義語・関連語
phosphorescent の語源・成り立ち Etymology
phosphorescent は、ギリシャ語 phos「光」+ phorein「運ぶ」に由来する phosphor に、変化を表す -escent が付いた語。phosphorus や photograph も同系で、「光を帯びるもの」という形から、暗所でほのかに光る性質が理解しやすい。
Phosphorescent comes from phosphor, which comes from Greek roots meaning "light" and "to carry." It is joined with the ending -escent, which often means "beginning to become" or "showing a quality." The original idea was "light-bearing," and it later developed into the sense of giving off a faint glow, especially in the dark. Related words include phosphorus and photograph.
外部辞書で調べる
この単語を英単語クイズで覚えよう