nanometre

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na·nom·e·ter

(nm) (nanŏ-mē-tĕr)
One billionth of a meter (10-9 m).
Synonym(s): nanometre.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

nanometre

One billionth of a metre.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

nanometre

one thousand millionth of a metre (a millionth of a millimetre) (10-9 m). Symbol: nm.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

nanometre (nm)

SI unit of length equal to one-millionth of a millimetre (or 10 ångströms or 10−9 m). Syn. millimicron (obsolete). See ångström; micrometre.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

na·nom·e·ter

(nm) (nanŏ-mē-tĕr)
One billionth of a meter (10-9 m).
Synonym(s): nanometre.
Medical Dictionary for the Dental Professions © Farlex 2012