Ultracooled

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Cooled to a very low temperature. not-comparable

    "In 1999, Dr. Hau headed a team of scientists that slowed light, which travels a brisk 186,282 miles a second when unimpeded, to a leisurely 38 miles an hour by shining it into an exotic, ultracooled cloud of sodium atoms."

Example

More examples

"In 1999, Dr. Hau headed a team of scientists that slowed light, which travels a brisk 186,282 miles a second when unimpeded, to a leisurely 38 miles an hour by shining it into an exotic, ultracooled cloud of sodium atoms."

Etymology

From ultra- + cooled.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.