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.

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romaine British  

/ rəʊˈmeɪn /

noun

1. the usual US and Canadian name for cos 1

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Etymology

Origin of romaine

1905–10; < French, feminine of romain Roman

Example Sentences

At the grocery store, I linger in the produce section with the reverence of a botanist on sabbatical, basket brimming with romaine, iceberg, butter — anything leafy and remotely flirty.

From Salon • May 26, 2025

On Friday, Meghan posted a video to Instagram which showed her wearing a hat with the writing "lettuce romaine calm" stitched across the front of it.

From BBC • Mar. 7, 2025

That includes raw almonds, down a dollar to $3.99 per pound; romaine hearts were cut 50 cents to $2.99; and organic tri-color bell peppers were reduced 50 cents to $4.49.

From Los Angeles Times • Mar. 25, 2024

The deployment of lettuces other than romaine — e.g., kale, chicories, radicchio — should always be accompanied by a menu-warning, so that those opposed may opt out.

From Seattle Times • Mar. 7, 2024

Her sink was overflowing with whole romaine lettuce leaves, bathing under the running water.

From "Darius the Great Is Not Okay" by Adib Khorram