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seleno-

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  1. a combining form meaning “moon,” used in the formation of compound words: selenography.
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Origin of seleno-

combining form representing Greek selḗnē
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for seleno-

seleno-

before a vowel selen-

combining form
  1. denoting the moonselenology
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Word Origin

from Greek selēnē moon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012