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n. Music
An interval smaller than a semitone.

mi′cro·ton′al (-tō′nəl) adj.
mi′cro·to·nal′i·ty (-tō-năl′ĭ-tē) n.
mi′cro·ton′al·ly adv.
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.


(Music, other) any musical interval smaller than a semitone
ˌmicroˈtonal adj
ˌmicrotoˈnality n
ˌmicroˈtonally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈmaɪ krəˌtoʊn)

a musical interval smaller than a semitone.
mi`cro•ton′al, adj.
mi`cro•ton′al•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The first exam day took place in July, delivered by musinc at myplace Middlesbrough - which became a Rockschool Public Exam Centre - with tuition from Microtone Music.
The tissues were embedded in paraffin and then sectioned; the sections were cut at 4-5 microns with the rotary microtone, stained with hematoxylin, and examined microscopically.
Bones were cut with a microtone (Zeiss Microm HM 340E) into 3 [micro]m thick sections and placed on histological slides.
They were clean in xylene, impregnated and embedded in paraffin wax and sections were cut at 5um on a rotatory microtone. The sections were floated out on clean microscope slides which had previously been lightly coated with egg albumin preparation in order to avoid detachment from slide during the staining procedures.
Finally, to compare numerical and experimental results, the specimen is prepared by carefully cutting the as-spun fiber using a microtone. An image analysis system with a built-in microscope (PTEM ZOOM 70) is used to capture an image of the cross-section of the as-spun fiber.
Liver specimens were fixed in paraffin and prepared 2 im slices by using rotary microtone. Liver specimens were then de- paraffinized and immersed in phosphate-buffered saline.
Wood Transverse Sections (TS), Radial Longitudinal Sections (RLS) and Tangential Longitudinal Sections (TLS) of about 10-15 micrometers thick were prepared with the aid of a freezing stage microtone from the fixed wood blocks.
However, prior to embedding, the mounted sections were orientated perpendicular to the long axes of the testes before we ensure cutting with the aid of the rotary microtone. These sections were designated as "vertical sections".