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 (mŭl′tə-plĕt′, -plĭt)
1. A spectral line having more than one component, representing slight variations in the energy states characteristic of an atom.
2. Any group of subatomic particles that are similar in most properties, but have different electric charges, such as the nucleons, which form a doublet, or the pions, which form a triplet.


(ˈmʌltɪˌplɛt; -plɪt)
1. (General Physics) a set of closely spaced lines in a spectrum, resulting from small differences between the energy levels of atoms or molecules
2. (General Physics) a group of related elementary particles that differ only in electric charge
[from multiple; on the model of doublet]
References in periodicals archive ?
Multipilicities of proton resonance were designated as singlet (s), doublet (d), and multiplet (m).
35 [up arrow] ** [up arrow] ** (a) Letters in parentheses indicate the peak multiplicities: s, singlet; d, doublet; t, triplet; q, quartet; m, multiplet.
1]H data are reported as follows: multiplicity (s = singlet, d = doublet, t = triplet, q = quartet, m = multiplet, br = broad).
At times I have involved students in organizing the line data for specific atomic ions into multiplet tables.
Spontaneous activity recorded by needle EMG was consisted of bursts of doublet, triplet and or multiplet discharges.
Then the scalar (ghost number 1, dimension 0) in the first column is interpreted as the Yang-Mills ghost and the vector and spinor in the second column are interpreted as the fields of the super-Yang-Mills multiplet (the field [[psi].
They provide full coverage of x-ray photoemission spectroscopy and x-ray absorption spectrometry (along with their many-body change transfer effects), theoretical approaches (including change transfer multiplet theory) that can be used to interpret core spectroscopies of systems, x-ray magnetic circular dichroism, and resonant x-ray emission spectroscopy.
ACD/1D NMR Assistant, designed for chemists, features multiplet analysis and a structure verification algorithm to bring NMR expertise to the desktop.
0](1)]; b) it yields information about the (hcp-) crystallite orientation in the sample by measuring the intensity distribution between the multiplet lines [alpha], [beta], and [gamma] which belong to the angular momentum substrates m = [+ or -]1, [+ or -]2, and 0, respectively, of the J = 2 final state of the [S.
The C-1 methine proton of the cis isomer appears as a broad singlet, while the methine proton of the trans isomer appears as a multiplet.

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