subsonic
(adjective) (of speed) less than that of sound in a designated medium; “aircraft flying at subsonic speeds”
Source: WordNet® 3.1
subsonic (not comparable)
(of a sound, scientific) having a frequency too low to be audible
(of a sound, literary) very quiet, almost inaudible
(of a speed) (aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
(fluid mechanics, of a flow) with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)
subsonic (plural subsonics)
an aircraft whose maximum speed is less than the speed of sound
Source: Wiktionary
25 February 2025
(adverb) (spatial sense) seeming to have no bounds; “the Nubian desert stretched out before them endlessly”
According to Guinness World Records, the largest iced coffee is 14,228.1 liters and was created by Caffé Bene (South Korea), in Yangju, South Korea, on 17 July 2014. They poured iced black Americano on the giant cup that measured 3.3 meters tall and 2.62 meters wide.
