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periodic function
periodic law
periodic motion
periodic sentence
periodic system
periodic table
periodical
periodical cicada
periodicity
periodization
periodontal
periodontics
perionychium
periosteum
periostitis
periostracum
periotic
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perigee
per·i·gee [ pérrəjee ] (plural per·i·gees)


noun 
Definition:
 
point nearest to orbited object: the point in the orbit of a satellite, moon, or planet at which it comes nearest to the object it is orbiting
[Late 16th century. Via French< late Greek perigeion< perigeios "close round the earth" < Greek peri "around" + gē "earth"]

per·i·ge·al [ pèrrə j əl ] adjective
per·i·ge·an [ pèrrə j ən ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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