type of citrus fruit, c. 1400, lymon, from Old French limon "citrus fruit" (12c.), via Proven?al or Italian from Arabic laimun, from Persian limu(n), generic terms for citrus fruits (compare lime (n.2)); cognate with Sanskrit nimbu "the lime." Slang meaning "a Quaalude" is 1960s, from Lemmon, name of a pharmaceutical company that once manufactured the drug.
lemon (n.2)
"worthless thing," 1909, American English slang; from lemon (n.1), perhaps via criminal slang sense of "a person who is a loser, a simpleton," which is perhaps from the notion of someone a sharper can "suck the juice out of." A pool hall hustle was called a lemon game (1908); while to hand someone a lemon was British slang (1906) for "to pass off a sub-standard article as a good one." Or it simply may be a metaphor for something which leaves a bad taste in one's mouth.
例文
1. Lemon and lime juice were both temporarily out of stock.
レモンジュースとライムジュースはしばらく品切れになっています。
2.There were two lemon trees and I paused to enjoy their perfume.
そこに2本のレモンの木があって、私は思わず足を止めてレモンの香りを味わった。
3. Lemon juice can help to prevent economy-class syndrome by improving blood circulation.
レモン汁は血液循環を改善し、エコノミークラス症候群の予防に役立つ。
4.Try using lemon juice to remove tobacco stains from your fingers.レモン汁を使って指の煙の染みを取り除いてみよう。