citron

American  

[si-truhn] / ˈsɪ trən /

noun

1. a pale-yellow fruit resembling the lemon but larger and with thicker rind, borne by a small tree or large bush, Citrus medica, allied to the lemon and lime.

2. the tree itself.

3. the rind of the fruit, candied and preserved.

4. a grayish-green yellow color.

5. citron melon.

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adjective

1. having the color citron.

citron British  

/ ˈsɪtrən /

noun

1. a small Asian rutaceous tree, Citrus medica, having lemon-like fruit with a thick aromatic rind See also citron wood

2. the fruit of this tree

3. Also called: citron melon.  a variety of watermelon, Citrullus vulgaris citroides, that has an inedible fruit with a hard rind

4. the rind of either of these fruits, candied and used for decoration and flavouring of foods

5. a greenish-yellow colour

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Etymology

Origin of citron

1375–1425; late Middle English < Middle French < Italian citrone < Latin citr ( us ) citrus + Italian -one augmentative suffix

Example Sentences

Left, the founder of Citron Research, won acclaim on Wall Street after calling out problems at China Evergrande in 2012 and Valeant Pharmaceuticals in 2015.

From The Wall Street Journal • Jun. 2, 2026

The explicit content feature, internally dubbed "Citron mode," had drawn pushback from both staff and investors, the FT reported.

From Barron's • Mar. 26, 2026

Citron Research, led by activist short seller Andrew Left, said in a Tuesday post on X that the firm is shorting Sandisk, saying the memory cycle is starting to peak.

From MarketWatch • Feb. 24, 2026

Discord's boss Jason Citron was grilled about his company's child safety measures at a fiery US Senate hearing in 2024, alongside alongside Facebook founder Mark Zuckerberg, Snap boss Evan Spiegler and TikTok's chief Shou Chew.

From BBC • Feb. 9, 2026

Our performance was in honour of the Queen of Holland, accompanied by the Prince of Orange, commonly known in Paris as "Prince Citron."

From My Double Life The Memoirs of Sarah Bernhardt by Bernhardt, Sarah