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A group or series of six.

[Late Latin hexas, hexad-, the number six, from Greek, from hex, six; see s(w)eks in Indo-European roots.]

hex·ad′ic (hĕk-săd′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Mathematics) a group or series of six
2. (Mathematics) the number or sum of six
[C17: from Greek hexas, from hex six]
hexˈadic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈhɛk sæd)

a group or series of six.
[1650–60; < Late Latin hexad-, s. of hexas < Greek hexás=héx six + -as -ad1]
hex•ad′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hexad - the cardinal number that is the sum of five and onehexad - the cardinal number that is the sum of five and one
digit, figure - one of the elements that collectively form a system of numeration; "0 and 1 are digits"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
These constructs are similar to age old concepts such as Atreya's Quadruple, 8 and modern models like the glycemic and metabolic pentad and hexad which support comprehensive diabetes care.9 These simple yet comprehensive, learning aids, can be used by all diabetes health professionals at all levels of care.
But, they only examined the impact of types of player based on Hexad scale model and gamification mechanics and did not study the learning style.
"Suspended Animation" brings together Ed Atkins, Antoine Catala, Ian Cheng, Josh Kline, Helen Marten, and Agnieszka Polska, an international hexad whose practices are differentiated enough to suggest not only computer animation's pervasiveness but also its flexibility--witness Atkins's emotive avatars adrift in an uncanny valley, Cheng's simulations mutating in real time, Polska's fluent digital-psychedelic effects, and Marten's loquacious skeuomorphic crossbreeds.
The six heroes and heroines of the story (making up the hexad), as criticism pointed out, may be read as aspects of Woolf's own mind in action, investigating possibilities of development in an integrated, continuously feedbacking reality, in which each and every event has consequences on each and every protagonist.
Cell proliferation was measured in hexad by MTS assay in 96-well plates using MTS-based CellTiter 96[R] AQueous nonradioactive cell proliferation assay (Promega Corp., WI, USA) according to the manufacturer's instructions.
Hear us, O hear us, Lord; to Thee A sinner is more music, when he prays, Than spheres' or angels' praises be, In panegyric alleluias (199-202) Kate Frost sees the number 23 as both prominent in Donne's personal numerological system (citing Devotions as a set of 23 three-part essays) and as a significant number within medieval numerologies: "Twenty-three is considered as the sum of its integers, that is 2+3," and so "the resulting number is traditionally associated with Justice, and ultimately with the hexad and the Final Judgement" (136).
Burke later added a sixth term, attitude (the agent's attitude toward the act), thus changing the pentad into a hexad. These questions asking for the who, what, when, where, and why of a situation becomes more powerful when the key terms are combined to construct ratios.
If it was used primarily for grain, a square corner can be hard to clean out, and like the livestock, corners can be harder to get the air to circulate through the grain (possibly) making it more prone to spoilage," says Walt Bones of Hexad Farms, Parker, South Dakota, owner of another beautifully preserved structure.
While the first six "lives" parallel the Roman biographer, the second hexad is more eclectic.
That, however, is not the way of Stan Tracey who brings to Birmingham his latest project, Hexad, the title of an album he recorded in the 1980s featuring a line-up of some of the best young musicians around to breathe fresh life into his original compositions.
Second, given her title, she misses the importance that Burke placed on attitude, especially in his shift from the pentad to the hexad (where he formally recognized its role).
There are two generally accepted locations for the [CO.sub.3.sup.2-] ion in the apatite lattice: one on the hexad axis at the [OH.sup.-] ion site (type-A) and the other for [PO.sub.4.sup.3-] (type-B).