Definition of 20 in English :
Define 20 in English
20 meaning in English
Meaning of 20 in English
Pronunciation of 20 in English
20 pronunciation in English
Pronounce 20 in English
20
see synonyms of 20Noun
Adjective
WordNet Lexical Database for English. Princeton University. 2010.
20
see synonyms of 20noun
medicine
vision that is of normal acuity
Collins English Dictionary. Copyright © HarperCollins Publishers
20
see synonyms of 20 normal acuity of vision, which is the ability to see clearly at twenty feet what the normal eye sees at that distance
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.