drumlin

American  

[druhm-lin] / ˈdrʌm lɪn /

noun

Geology.

1. a long, narrow or oval, smoothly rounded hill of unstratified glacial drift.

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drumlin British  

/ ˈdrʌmlɪn /

noun

1. a streamlined mound of glacial drift, rounded or elongated in the direction of the original flow of ice

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drumlin Scientific  

/ drŭm′lĭn /

1. An extended, oval hill or ridge of compacted sediment deposited and shaped by a glacier. Drumlins are typically about 30 m (98 ft) high and are longer than they are wide. They have one steep and one gentle slope along their longest axis, which is parallel to the direction of the glacier's movement. The steepest slope faces the direction from which the glacier originated, and the gentler slope faces the direction in which the glacier was advancing.

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Etymology

Origin of drumlin

1825–35; drum ² + -lin, variant of -ling ¹

Example Sentences

The rest must hand-scrub every hardened drumlin of melted cheese off every plate, then play Jenga with a drying rack that is never dry anymore.

From Washington Post

Architect Paul Albanese took full advantage of this feature—by the end of the round, golfers have intersected the drumlin 10 times in different ways.

From Golf Digest

Every foot of the landscape from here on north would be scored and scarred with reminders of glaciation—scattered boulders called erratics, drumlins, eskers, high tarns, cirques.

From Literature

I spent the mornings at my chores, one eye on the sea, and then, from the top of a drumlin, spent some time looking north, my old spyglass ready.

From Literature

To him, they looked like drumlins, sedimentary castles that dot parts of his native Northern Ireland.

From New York Times