Science / Weather / Diurnal: Pertaining to actions or events that occur during a twenty-four hour cycle or recurs every twenty-four hours. Meteorological elements that are measured diurnally include clouds, precipitation, pressure, relative humidity, temperature, and wind.

Other Words for Diurnal

Diurnal Adjective Synonyms: daily, circadian, day-to-day, regular, everyday, quotidian, daytime


Science / Tides and Currents / Semidiurnal: Having a period or cycle of approximately one-half of a tidal day. The predominant type of tide throughout the world is semidiurnal, with two high waters and two low waters each tidal day. The tidal c MORE

Great Diurnal Range (GT)

Science / Tides and Currents / Great Diurnal Range (GT): The difference in height between mean higher high-water and mean lower low water. The expression may also be used in its contracted form, diurnal range. MORE

Age Of Diurnal Inequality

Science / Tides and Currents / Age Of Diurnal Inequality: The time interval between the maximum semimonthly north or south declination of the Moon and the maximum effect of declination upon range of tide or speed of the tidal current. The age may be computed MORE


Science / Tides and Currents / Terdiurnal: Having three periods in a constituent day. The symbol of a terdiurnal constituent is the subscript 3. MORE

Diurnal Inequality

Science / Tides and Currents / Diurnal Inequality: The difference in height of the two high waters or of the two low waters of each tidal day; also, the difference in speed between the two flood tidal currents or the two ebb currents of each tidal day MORE

Diurnal Signs

Science / Astrology / Diurnal Signs: Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces, signs whose natural positions are in the diurnal or southern hemisphere of a horoscope. MORE