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El Niño	an unusually warm Pacific Ocean current that develops near the International Date Line in the center of the ocean and flows east toward Peru and then south along the coast of South America. El Niño events, which occur every two to seven years approximately, are associated with various negative impacts including damage to the livelihoods of those dependent on fishing and disturbance to regional and global weather patterns, which in turn can increase the incidence of disease and the frequency of destructive weather events.
EU	abbreviation of "European Union," an economic and political union of twenty-seven democratic countries formed from the European Economic Community in 1993. The union currently consists of the member states Austria, Belgium, Bulgaria, the Czech Republic, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and the United Kingdom.
francium	a highly radioactive chemical element of the alkali metal group that has eighty-seven protons in each nucleus. (symbol: Fr)
French and Indian War	a war between France and England fought in North America from 1754 to 1760, which was part of the Seven Years' War.
Goshen	according to the Old Testament, the fertile land of the Israelites in Egypt that was spared from the last of the seven plagues visited on that country. [1/2 definitions]
grain	in certain systems of weight, the smallest unit, derived from the weight of a ripe grain of wheat and equal to one seven-thousandth of a pound or 64.798 milligrams. [1/11 definitions]
Great Pyramid of Giza	a limestone and granite pyramid, which is the oldest and only remaining of the Seven Wonders of the Ancient World, built circa 2500 B.C.E. as a memorial and tomb for King Khufu, the second king of the fourth Egyptian dynasty.
haiku	a Japanese verse form made of three lines, or any poem written in this form. The first line has five syllables, followed by a line of seven syllables, then another line of five.
hepta-	seven.
heptad	a group or series of seven.
heptagon	a polygon with seven sides and seven angles.
heptameter	a line or unit of verse consisting of seven metrical feet or measures.
heptarchy	a government or state controlled by seven persons. [2 definitions]
heptastich	a poem or poetic unit with seven verses or lines.
heptavalent	having a chemical valence of seven.
high school	a school consisting of grades nine or ten through twelve or, formerly, grades seven through twelve.
holmium	a chemical element of the rare-earth group that contains sixty-seven protons in each nucleus. (symbol: Ho)
H.S.	abbreviation of "High School," a school consisting of grades nine or ten through twelve or, formerly, grades seven through twelve (used in a proper name).
iridium	a chemical element that has seventy-seven protons in each nucleus and that occurs as a lustrous yellowish white, extremely hard, dense, and corrosion-resistant metal, used as a hardening alloy, esp. with precious metals. (symbol: Ir)
isopod	any of various crustaceans of land, sea, or fresh water that have seven pairs of legs and a flattish body. [1/2 definitions]
junior high school	a school before high school in the United States. Junior high school usually includes grades seven, eight, and nine. Another name for junior high school is middle school.

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