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There are 7 ten-letter words beginning with ULTRAS

ULTRASHARPultrasharp adj. Extremely or excessively sharp; rapier.
ULTRASHARP adj. very very sharp.
ULTRASHORTultrashort adj. Very short.
ultrashort adj. (Sciences) Extremely short in duration, typically on the femtosecond scale.
ultrashort adj. (Physics, of a wave) Having a wavelength of between 1 and 10 metres.
ULTRASLICKultraslick adj. Extremely slick.
ULTRASLICK adj. very very slick.
ULTRASMALLultrasmall adj. Extremely or exceedingly small.
ULTRASMALL adj. very very small.
ULTRASMARTultrasmart adj. Extremely smart.
ULTRASMART adj. very very smart.
ULTRASONICultrasonic adj. (Acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with…
ULTRASONIC adj. denoting airwaves or vibrations with frequencies higher than those audible to the human ear.
ULTRASOUNDultrasound n. (Physics) Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.
ultrasound n. (Medicine) The use of ultrasonic waves for diagnostic or therapeutic purposes.
ultrasound v. (Transitive, intransitive) To treat with ultrasound.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 12 words
  • Scrabble in French: no word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 4 words


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