perron

American  

[per-uhn, pe-rawn] / ˈpɛr ən, pɛˈrɔ̃ /

noun

Architecture.

plural

perrons

1. an outside platform upon which the entrance door of a building opens, with steps leading to it.

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perron British  

/ ˈpɛrən /

noun

1. an external flight of steps, esp one at the front entrance of a building

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Etymology

Origin of perron

1350–1400; Middle English < Middle French, Old French, derivative of pierre stone < Latin petra < Greek pétra

Example Sentences

"We can say, based on our results, that if the coastlines of Titan's seas have eroded, waves are the most likely culprit," says Taylor Perron, the Cecil and Ida Green Professor of Earth, Atmospheric and Planetary Sciences at MIT.

From Science Daily

Rather than look for direct signs of wave-like features in images of Titan, Perron says the team had to "take a different tack, and see, just by looking at the shape of the shoreline, if we could tell what's been eroding the coasts."

From Science Daily

Perron and his colleagues, including first author Rose Palermo, a former MIT-WHOI Joint Program graduate student and a research geologist at the U.S.

From Science Daily

"We had the same starting shorelines, and we saw that you get a really different final shape under uniform erosion versus wave erosion," Perron says.

From Science Daily

"We found that if the coastlines have eroded, their shapes are more consistent with erosion by waves than by uniform erosion or no erosion at all," Perron says.

From Science Daily