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.
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Leap Noun Synonyms: spring, bound, jump, vault (into), hurdle, clear, hop over, skip over, negotiate
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
Health / Dentistry / Six-Year Molar: The first permanent tooth to erupt, usually between the ages of five and six. MORE
Business / Finance / Sum Of The Years Digits (SYD): Policies and guidelines that brokers must use to ensure that investors have the financial means to assume risks that they wish to undertake. These are enforced by the NASD and other self-regulatory or MORE
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
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