Leap Year

Science / Tides and Currents / Leap Year: A calendar year containing 366 days. According to the present Gregorian calendar, all years with the date-number divisible by 4 are leap years, except century years. The latter are leap years when the date-number is divisible by 400.

Other Words for Leap

Leap Noun Synonyms: spring, bound, jump, vault (into), hurdle, clear, hop over, skip over, negotiate


Science / Weather / Year: The interval required for the earth to complete one revolution around the sun. A sidereal year, which is the time it take for the earth to make one absolute revolution around the sun, is 365 days, 6 h MORE

Tropical Year

Science / Tides and Currents / Tropical Year: The average period of the revolution of the Earth around the Sun with respect to the vernal equinox. Its length is approximately 3 65.242,2 days. The tropical year determines the cycle of changes in t MORE

Rolling Year

Business / Human Resources (HR) / Rolling Year: Under FMLA regulations, a rolling year is defined as a 12-month period measured backward from the date an employee first uses leave. MORE

Sidereal Year

Science / Tides and Currents / Sidereal Year: Average period of the revolution of the Earth around the Sun with respect to a fixed star. Its length is approximately 365 .256,4 mean solar days. MORE

Six-Year Molar

Health / Dentistry / Six-Year Molar: The first permanent tooth to erupt, usually between the ages of five and six. MORE

Odd- Or Even-Year Usage

Life Style / Time Shares / Odd- Or Even-Year Usage: Biennial vacation property ownership where the owner can use his/her property every other year, termed either odd- or even-year depending upon the years when the interval week(s) are used. For instanc MORE