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Longman Dictionary of Contemporary English
moiety
noun
EXAMPLES FROM CORPUS
▪ Controversy exists as to the nature of the toxic moiety within gliadin.
▪ Experimental evidence later suggested that chloride was the actively transported moiety and that sodium followed passively.
▪ It was not possible to ascertain directly how many halogen moieties had ended up on the football.
The Collaborative International Dictionary
moiety

Residue \Res"i*due\ (r?z"?-d?), n. [F. r['e]sidu, L. residuum, fr. residuus that is left behind, remaining, fr. residere to remain behind. See Reside, and cf. Residuum.]

  1. That which remains after a part is taken, separated, removed, or designated; remnant; remainder.

    The residue of them will I deliver to the sword.
    --Jer. xv. 9.

    If church power had then prevailed over its victims, not a residue of English liberty would have been saved.
    --I. Taylor.

  2. (Law) That part of a testeator's estate wwhich is not disposed of in his will by particular and special legacies and devises, and which remains after payment of debts and legacies.

  3. (Chem.) That which remains of a molecule after the removal of a portion of its constituents; hence, an atom or group regarded as a portion of a molecule; a moiety or group; -- used as nearly equivalent to radical, but in a more general sense.

    Note: The term radical is sometimes restricted to groups containing carbon, the term residue and moiety being applied to the others.

  4. (Theory of Numbers) Any positive or negative number that differs from a given number by a multiple of a given modulus; thus, if 7 is the modulus, and 9 the given number, the numbers -5, 2, 16, 23, etc., are residues.

    Syn: Rest; remainder; remnant; balance; residuum; remains; leavings; relics.

Douglas Harper's Etymology Dictionary
moiety

"an equal half," mid-15c., from Old French moite, earlier meitiet (12c., Modern French moitié) "half; middle; portion, piece," from Latin meditatem (nominative medietas) "half," originally "middle point," from medius "middle" (see medial (adj.)).

Wiktionary
moiety

n. 1 half. 2 A share or portion. 3 (context chemistry English) A specific segment of a molecule. 4 (context anthropology English) Each descent group in a culture which is divided exactly into two descent groups.

WordNet
moiety
  1. n. one of two (approximately) equal parts [syn: mediety]

  2. one of two basic subdivisions of a tribe

Wikipedia
Moiety

Moiety may refer to:

  • Moiety (chemistry), a part or functional group of a molecule
  • Moiety (kinship), either of two groups into which a society is divided
  • An Australian Aboriginal kinship group
  • Native Hawaiian realm ruled by a Mo'i or Ali'i
  • Moiety title, one of two parts of property ownership
  • A rebel group in the computer game Riven
Moiety (chemistry)

In organic chemistry moiety is a term used for part of a molecule. Larger moieties are often functional groups.

A functional group is a moiety that participates in similar chemical reactions in most molecules that contain it. In turn the parts of the group are termed moieties. For example, methyl p-hydroxybenzoate contains a phenol functional group within the acyl moiety, which in turn is part of the paraben moiety.

Moieties that are branches extending from the backbone of a hydrocarbon molecule, which can often be broken off and substituted with others, are called substituents or side chains.

Moiety (kinship)

In the anthropological study of kinship, a moiety is a descent group that coexists with only one other descent group within a society. In such cases the community usually has unilineal descent, either patri or matrilineal so that any individual belongs to one of the two moiety groups by birth, and all marriages take place between members of different moieties. In the case of a patrilineal descent system this can be interpreted as a system in which women are exchanged between the two moieties. Moiety societies are found particularly among the indigenous cultures of North America and Australia.

Usage examples of "moiety".

He stopped, drew his shapes, walked on, stopped, drew, walked, on to the spired old-century cragginess of Nabob Bridge, and over quickly through Kinken where the richer khepri moieties, older money and arriviste, preserved their dreamed-up culture in the Plaza of Statues, kitsch mythic shapes in khepri-spit.

At the same time, knowing that, in addition, your frivolous stepfather has squandered money which is exclusively yours, I have decided to absolve him from a certain moiety of the mortgages on his property, in order that you may be in a position to recover of him what you have lost, by suing him in legal fashion.

He sought to obtain the undivided possession of Palermo, of which one moiety had been ceded to the elder branch.

One half of it--that moiety in which the comfortable proprietress was then seated--was carpeted, and so partitioned off at the further end as to accommodate a sleeping-place, constructed after the fashion of a berth on board ship, which was shaded, like the little windows, with fair white curtains, and looked comfortable enough, though by what kind of gymnastic exercise the lady of the caravan ever contrived to get into it, was an unfathomable mystery.

After his death, the standard rose to ten carats, till in the public distress it was reduced to the moiety.