ultralight

American  

[uhl-truh-lahyt, uhl-truh-lahyt, uhl-truh-lahyt] / ˌʌl trəˈlaɪt, ˈʌl trəˌlaɪt, ˈʌl trəˌlaɪt /

adjective

1. extremely lightweight in comparison with others of its kind.

   a car with an ultralight engine.

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noun

1. something that is ultralight.

2. a small, light, inexpensive single-seat airplane that is essentially a motorized hang glider.

Etymology

Origin of ultralight

First recorded in 1970–75; ultra- + light ²

Example Sentences

See Examples For:

ultralight

That made it especially useful for searching for signals associated with the ultralight particles the team wanted to investigate.

From Science Daily ● Sep. 6, 2026

The Kenyan was wearing a pair of revolutionary ultralight shoes that pushed Adidas ahead of Nike in another race — that of outfitting feet for record feats.

From Los Angeles Times ● Apr. 27, 2026

To an amazing degree, the FAA relies on ultralight pilots’ judgment and sense of self preservation.

From The Wall Street Journal ● Oct. 17, 2025

Those include “fuzzy” or “warm” dark matter, composed of hypothetical, ultralight particles called axions, and even a whole “dark sector” of invisible particles and forces that would create galaxies with a different footprint.

From New York Times ● Jan. 26, 2024

Only the unique combination of the two of them could have produced the silk sleigh: a sleek, ultralight craft buoyed by ulola gas.

From "Strange the Dreamer" by Laini Taylor