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romaine

American  
[roh-meyn, ruh-] / roʊˈmeɪn, rə- /

noun

  1. Also called cos, cos lettuce.  Also called romaine lettuce,.  a variety of lettuce, Lactuca sativa longifolia, having a cylindrical head of long, relatively loose leaves.


romaine British  
/ rəʊˈmeɪn /

noun

  1. the usual US and Canadian name for cos 1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of romaine

1905–10; < French, feminine of romain Roman

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Inspired by traditional Indian cooking and Southeast Asian flavors, this Food52 recipe bathes and simmers sautéed heads of romaine in a delicious mixture of gingery coconut milk, fresh lime juice and fish sauce.

From Salon Jul. 25, 2026

Head lettuce represents about 43% of domestic production, with leaf and romaine varieties making up much of the rest.

From The Wall Street Journal Jul. 24, 2026

The Taylor family is credited with helping to pioneer numerous innovations, from bagged salads to the U.S. industry’s first automated harvesters for romaine lettuce, cabbage and celery.

From The Wall Street Journal Jul. 18, 2026

The Chef’s Garden Grilling Box takes care of the vegetables, with a rotating selection that might include asparagus, romaine, zucchini, eggplant or corn.

From Salon Jul. 12, 2026

Tyger often teased that he was going to go rogue and start a romaine revolt.

From "Scythe" by Neal Shusterman

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