five, cinque, quint, quintet, fivesome, quintuplet, pentad, fin, Phoebe, Little Phoebe
(noun) the cardinal number that is the sum of four and one
Source: WordNet® 3.1
pentad (plural pentads)
A group or series of five things.
A mean average value of temperature, etc, taken every five days.
(chemistry) Any element, atom, or radical having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad.
• (group of five): fivesome; see also quintet
• monad · duad, dyad · triad · tetrad · pentad · hexad · heptad · octad · ennead, nonad · decad, decade · hendecad · dodecad, duodecade
• panted, pedant
Source: Wiktionary
Pen"tad, n. Etym: [Gr. (Chem.)
Definition: Any element, atom, or radical, having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad; as, nitrogen is a pentad in the ammonium compounds.
Pen"tad, a. (Chem.)
Definition: Having the valence of a pentad.
Source: Webster’s Unabridged Dictionary 1913 Edition
29 March 2025
(adjective) without care or thought for others; “the thoughtless saying of a great princess on being informed that the people had no bread; ‘Let them eat cake’”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
