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Definition of choy sum

choy sum

Plural:choy sum
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• noun

1

A leafy green vegetable belonging to the mustard family, widely used in Chinese cuisine, characterized by tender green stems, flat green leaves, and distinctive small yellow blossoms.

Example

"The chef quickly stir-fried the choy sum with minced garlic, a splash of soy sauce, and sesame oil."

Synonyms
View all synonyms for choy sum

Word Nuance & Usage

Frequently confused with bok choy or gai lan; choy sum is distinctly recognized by its tender inner stalks and the presence of small yellow flowers.

• Nearby Words

chow mein
chowchilla
chowder
choy sum
christchurch
christianomastix
christmas cactus

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Choy sum. In Wordmom Dictionary. Retrieved Oct 18, 2026, from https://wordmom.com/dictionary/choy%20sum
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