the time period when the earth is spinnig on its axis at 360 degrees
and is experiencing light
A scientific term for day or daily is diurnal. Nocturnal means night or nightly.
Well one would be day and night, oppisites.
The scientific or taxonomic name would be Rosa'Night'n'Day'.
The scientific definition of hair is fossil fuels
Day and night are of equal length (practically the definition of equinox)
A night owl is a person who is active or wakeful at night, usually up all night as if it was day and tends to sleep all day. This is usually because of a night time job or a sleeping disorder where the person has trouble with sleeping.
During the Autumn equinox the length of the day and night are nearly equal. The length of the day on the equinox is approximately twelve hours.
Twilight is the time of day that falls between sunrise, or sunset, and full night.
The terminator is the [moving] line on earth where day turns into night (and conversely).
no
It is the same as the Dictionary definition.
The scientific definition of purification is, the extraction of one specific substance from a mixture of substances.