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Related to ottava: ottava rima
adv. & adj. Music
At an octave higher or lower than the notes written. Used chiefly as a direction, positioned above or below a staff.
[Italian (all')ottava, (at the) octave, from Medieval Latin octāva, from Latin, feminine of octāvus, eighth; see octave.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Classical Music) an interval of an octave. See all'ottava
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
(of notes in a musical score) at an octave higher or lower than written. Abbr.: 8va
[1810–20; < Italian: octave]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.