triad

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triad
left to right: C major, E minor, and D diminished triads

tri·ad

 (trī′ăd′, -əd)
n.
1. A group of three.
2. Music A chord of three tones, especially one built on a given root tone plus a major or minor third and a perfect fifth.
3. A section of a Pindaric ode consisting of the strophe, antistrophe, and epode.

[Late Latin trias, triad-, from Greek, the number three; see trei- in Indo-European roots.]

tri·ad′ic (trī-ăd′ĭk) adj.

triad

(ˈtraɪæd)
n
1. a group of three; trio
2. (Chemistry) chem an atom, element, group, or ion that has a valency of three
3. (Music, other) music a three-note chord consisting of a note and the third and fifth above it
4. (Literary & Literary Critical Terms) an aphoristic literary form used in medieval Welsh and Irish literature
5. (Military) the US strategic nuclear force, consisting of intercontinental ballistic missiles, submarine-launched ballistic missiles, and bombers
[C16: from Late Latin trias, from Greek; related to Greek treis three]
triˈadic adj
ˈtriadism n

Triad

(ˈtraɪæd)
n
(Law) any of several Chinese secret societies, esp one involved in criminal activities, such as drug trafficking

tri•ad

(ˈtraɪ æd, -əd)

n.
1. a group of three, esp. of three closely related persons or things.
2.
a. an element, atom, or group having a valence of three.
b. a group of three closely related compounds or elements, as isomers or halides.
3. the basic chord of a musical tonality, consisting of a tonic, a third, and a fifth.
[1540–50; < Latin triad-, s. of trias < Greek triás. See tri-, -ad1]
tri•ad′ic, adj.
tri′ad•ism, n.

Triad

 a group of three.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.triad - the cardinal number that is the sum of one and one and onetriad - the cardinal number that is the sum of one and one and one
digit, figure - one of the elements that collectively form a system of numeration; "0 and 1 are digits"
2.triad - a set of three similar things considered as a unittriad - a set of three similar things considered as a unit
trilogy - a set of three literary or dramatic works related in subject or theme
triplicity, trigon - (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees
set - a group of things of the same kind that belong together and are so used; "a set of books"; "a set of golf clubs"; "a set of teeth"
3.triad - three people considered as a unittriad - three people considered as a unit  
assemblage, gathering - a group of persons together in one place
triumvirate - a group of three men responsible for public administration or civil authority
4.triad - a three-note major or minor chordtriad - a three-note major or minor chord; a note and its third and fifth tones
chord - a combination of three or more notes that blend harmoniously when sounded together

triad

noun threesome, triple, trio, trinity, trilogy, triplet, triumvirate, triptych, trine, triune the triad of responsibilities: teaching, research and service

triad

noun
A group of three individuals:
Translations

triad

[ˈtraɪəd] Ntríada f

Triad

n (= Chinese secret society)Triade f

triad

nTriade f, → Trias f; (Mus) → Dreiklang m; (Chem) → dreiwertiges Element

tri·ad

n. triada, grupo de tres elementos que se relacionan entre sí.
References in periodicals archive ?
Workshops will be relevant to members of the adoption triad and constellation.
ANLC's confidential adoption services help guide everyone in the adoption triad through the adoption process with integrity and complete support.
These Web sites offer resources and information to members of the adoption triad (birth parents, adoptive parents, and adoptees) and adoption professionals.