1590s, "bright, shining," from Latin lucidus "light, bright, clear," figuratively "perspicuous, lucid, clear," from lucere "to shine," from lux (genitive lucis) "light," from PIE root *leuk- "to shine, be bright" (see light (n.)). Sense of "easy to understand" first recorded 1786. Lucid interval "period of calm or temporary sanity" (1580s) is from Medieval Latin lucida intervalla (plural), which was common in medieval English legal documents (non est compos mentis, sed gaudet lucidis intervallis). Related: Lucidly; lucidness (1640s).
例文
1. His prose is always lucid and compelling.
彼の散文は簡潔で力強い。
2.In a rare lucid moment，she looked at me and smiled.
めったに目が覚めることができない時、彼女は私を見て、私に笑った。
3.His explanation was lucid and to the point.
彼の説明は簡潔でわかりやすい。
4.Haig was immediately impressed by Charteris 's expertise and by his lucid explanation of the work.
チャタリスの専門知識と作品に対する彼のわかりやすい説明はすぐにヘイグに深い印象を残した。
5.He gave a more lucid exposition of the party 's strategy than Bush has managed in months of obfuscation.ブッシュ氏の数カ月間の言葉に対して不詳で、同党の策略について比較的はっきり述べた。