Definition of Atomic mass unit

1. Noun. Unit of mass for expressing masses of atoms or molecules.

Generic synonyms: Mass Unit

Definition of Atomic mass unit

1. Noun. (chemistry) A unit of mass equal to 1/12 the mass of an atom of the 12C isotope of carbon. ¹

¹ Source:

Medical Definition of Atomic mass unit

1. One-twelfth the mass of a neutral atom of the most abundant isotope of carbon. (16 Dec 1997)

Atomic Mass Unit Pictures

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Lexicographical Neighbors of Atomic Mass Unit

atomic batteries
atomic battery
atomic bomb
atomic bombs
atomic clock
atomic clocks
atomic cocktail
atomic core
atomic energy
atomic explosion
atomic force microscope
atomic force microscopy
atomic forensics
atomic heat
atomic nuclei
atomic nucleus
atomic number
atomic number 1
atomic number 10
atomic number 100
atomic number 101
atomic number 102
atomic number 103
atomic number 104
atomic number 105
atomic number 106

Literary usage of Atomic mass unit

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Metric System (1992)
"Name electronvolt unified atomic mass unit TABLE 9 Units used with the ... (c) The unified atomic mass unit is equal to (1/) of the mass of an atom of the ..."

2. Guide for the Use of the International System of Units (SI) by B. N. Taylor (1995)
"5.1.3 Electronvolt and unified atomic mass unit The CIPM, and thus this Guide, ... Note: In some fields the unified atomic mass unit is called the dalton, ..."

3. Proceedings of the Sixth Meeting of the Task Force on Shielding Aspects of by OECD Nuclear Energy Agency (2004)
"... formed by neutron capture in those nuclei. and the respective Q-values for (ny) reaction. as given by the formula: where u is the atomic mass unit ..."

4. The Origin and Its Meaning: On the Origin of the Universe and Its Mechanics by Roger Ellman (2004)
"In 20th Century physics the chosen standard for the definition of the atomic mass unit (amu) has been 1/12 the mass of a ..."

5. Science by American Association for the Advancement of Science (1883)
"... very favorably with the value of + 0.0574 atomic mass unit A2 obtained for formaldehyde (5). This small positive inertial SB 80 I 5 20 & 15 Ю Fig. 1. ..."

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