Strong's #3574: nuchthemeron (pronounced nookh-thay'-mer-on)
from 3571 and 2250; a day-and-night, i.e. full day of twenty-four hours:--night and day.
Thayer's Greek Lexicon:
́
nuchthēmeron
1) a night and a day, the space of twenty four hours
Part of Speech: noun neuter
Relation: from G3571 and G2250
Usage:
This word is used 1 times:
2 Corinthians 11:25: "was I stoned, thrice I suffered shipwreck, a night and a day I have been in the deep;"