nounπShareSecond, 1/60 of a minute."The race was so close; the winner beat the other runner by only two seconds. "timeunitChat with AIVocabulary GamePractice Reading
nounπShareOne-sixtieth of a minute; the SI unit of time, defined as the duration of 9,192,631,770 periods of radiation corresponding to the transition between two hyperfine levels of caesium-133 in a ground state at a temperature of absolute zero and at rest."The lecture was scheduled to last 15 seconds, or 2.5 secs. "timephysicsscienceunitChat with AIVocabulary GamePractice Reading
nounπShareA unit of angle equal to one-sixtieth of a minute of arc or one part in 3600 of a degree."The angle of the sun's rays at noon was approximately 60 secs. "mathastronomydegreespaceunitChat with AIVocabulary GamePractice Reading
nounπShareA short, indeterminate amount of time."I only had a sec to grab my lunch before my next class. "timeamountChat with AIVocabulary GamePractice Reading