• WordNet 3.6
    • n quintuplet a set of five similar things considered as a unit
    • n quintuplet one of five children born at the same time from the same pregnancy
    • n quintuplet the cardinal number that is the sum of four and one
    • ***
Webster's Revised Unabridged Dictionary
    • Quintuplet A collection or combination of five of a kind.
    • Quintuplet A cycle having five crank shafts and adapted for five riders, all of whom can assist in the propulsion.
    • Quintuplet (Mus) A group of five connected notes; a turn of five notes.
    • Quintuplet Five children born in the same labor.
    • ***
Century Dictionary and Cyclopedia
    • n quintuplet A set of five, as of car-springs, etc.
    • n quintuplet plural Five children born at a birth.
    • n quintuplet In music, a group of five notes to be performed in the time of three, four, or six. Also quintole. Compare nonuplet, triplet, etc.
    • n quintuplet A bicycle for five riders; a quintet.
    • ***
Chambers's Twentieth Century Dictionary
    • ns Quintuplet a set of five things: :
    • ns Quintuplet (pl.) five young at a birth
    • ns Quintuplet (mus.) same as Quintole
    • ***


Webster's Revised Unabridged Dictionary
From Quintuple
Chambers's Twentieth Century Dictionary
Fr.,—L. quintuplexquintus, fifth, plicāre, to fold.


In literature:

Petritus, a Greek physician, speaks of the birth of quintuplets at the seventh month.
"Anomalies and Curiosities of Medicine" by George M. Gould
Why wasn't I born quintuplets?
"The Return" by H. Beam Piper and John J. McGuire
By this time next week, we're all going to wish we'd been born quintuplets.
"The Cosmic Computer" by Henry Beam Piper
In all medical literature only about 30 cases of quintuplets have been recorded.
"The Good Housekeeping Marriage Book" by Various

In news:

Carbone quintuplets attend their prom.
At long last, 'The Country Doctor ' (1936) starring The Dionne Quintuplets.
Humble quintuplets look all grown up at NICU costume party.
1936 Madame Alexander Composition of Dion Quintuplet Toddlers PBS.
The Story of the Dionne Quints Five cute dolls of happy quintuplets turned up in Wichita, but the Dionne girls' real-life story is a tragic one Understanding Our Appraisals Useful tips to keep in mind when watching ANTIQUES ROADSHOW.
I've heard they're the Dionne quintuplets .
Dionne Quintuplet Dolls, ca 1935 PBS.
Quintuplet 's stars show the same type of spiral, which tells researchers each is actually two or more stars and demonstrates that Quintuplet 's most massive members are smaller than previously thought.
Dusty spirals around two of Quintuplet 's red stars reveal each to be a binary.
Marion sheep farmer sees delivery of quintuplets.
All that changed on Sept 14, 1963, when Fischer gave birth to the first known surviving quintuplets in the United St. SD mother of 1st surviving US quintuplets dies.
The cheetah quintuplets come as the number of speedy cats in Africa has plunged from about 24,000 to 12,000 over the past 35 years.
Quintuplets home for the holidays.
The Wing quintuplets have outgrown their baby bouncers and rattles.
Then, catch up with a stay-at-home dad who was raising quintuplets.

In science:

The massive young Arches and Quintuplet clusters recently discovered near the Galactic center also have relatively flat IMFs, so there may indeed be a tendency for massive clusters to form preferentially massive stars.
Summary: Modes of Star Formation
They also showed unambiguously that the Quintuplet and the Arches clusters ionize the Sickle nebula and the thermal filaments that seem to connect Sgr A to the Radio Arc.
High excitation ISM and gas
Large scale ionization of the Radio Arc region by the Quintuplet and the Arches clusters.
High excitation ISM and gas
WN9/Ofpe and five possible WCLd stars in the Quintuplet cluster.
New Galactic Wolf-Rayet stars, and candidates. An annex to The VIIth Catalogue of Galactic Wolf-Rayet Stars
Arches cluster of ≈104 M⊙ and about twice this value for the Quintuplet cluster.
The Initial Mass Function in the Galactic Center
Among Galactic examples of SSCs are the Arches and the Quintuplet cluster located in the vicinity of the Galactic center, and NGC 3603. A few dozens of massive star clusters are known in the Magellanic Clouds.
Evolution of X-ray emission from young massive star clusters
Quintuplet, have comparable masses, are located at approximately the same distance, suffer similar interstellar absorption, but their X-ray images, albeit being in the same field of view, are strikingly different.
Evolution of X-ray emission from young massive star clusters
Only careful examination of the Quintuplet by Law & Yusef-Zadeh (2004) revealed the presence of weak X-rays from this cluster.
Evolution of X-ray emission from young massive star clusters
The X-rays from the Arches were modeled in a number of papers (see above), but the scarcity of X-rays from the somewhat older and less compact Quintuplet is not explained.
Evolution of X-ray emission from young massive star clusters
This assumption is based on the spectral fits of the diffuse emission from the Arches and the Quintuplet clusters as discussed in Law & Yusef-Zadeh (2004).
Evolution of X-ray emission from young massive star clusters
The ratio of masses as well as of IR luminosities between Arches and Quintuplet is roughly 3:1.
Evolution of X-ray emission from young massive star clusters
In contrast to the Arches’ diffuse emission, the Quintuplet’s diffuse emission is clearly thermal.
Evolution of X-ray emission from young massive star clusters
The close correspondence between the IRAC images and the radio images of HII regions – notably near the Quintuplet Cluster – illustrate the strong interaction between the luminous, hot stars and gas in the CMZ (A.
News from the year 2006 Galactic Center workshop
One of the important outstanding problems in Galactic center research is to identify the mechanism for the formation of such massive clusters as the Arches and Quintuplet.
News from the year 2006 Galactic Center workshop
The stellar temperatures are ∼ 38000 K in the Quintuplet cluster and ∼ 27000 K in the Arches Cluster.
An analysis of infrared emission spectra from the regions near the Galactic Center