A second is directly part of other units, such as frequency measured in hertz (inverse seconds or s −1), speed in meters per second, and acceleration in meters per second squared.

Dec 6, 2016 · The meaning of SECOND is next to the first in place or time. How to use second in a sentence.

SECOND definition: 1. immediately after the first and before any others: 2. the position in which a person finishes a…. Learn more.

SECOND definition: next after the first; being the ordinal number for two. See examples of second used in a sentence.

1. In the second order, place, or rank: finished second. 2. But for one other; save one: the second highest peak.

A second is a unit of time, and one of the sixty parts that a minute is divided into.

1. In the second order, place, or rank: finished second. 2. But for one other; save one: the second highest peak.

5 days ago · A second may be one-sixtieth of a minute or the item after first. If you ask whether you're second in line, the hostess might reply, "Give me a second and I'll tell you." Different …

In science, a second is the time it takes for a caesium atom to vibrate 9,192,631,770 (around 9 billion) times. Scientists measure the second this way because the length of a day changes all …

The second is the international standard unit (SI unit) for science. Celestial sphere -based: as in sidereal time, where the apparent movement of the stars and constellations across the sky is …