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 (ăt′ə-nē, ăt′n-ē)
1. Lack of normal muscle tone.
2. Lack of accent or stress.

[Late Latin atonia, from Greek atoniā, from atonos, slack : a-, without; see a-1 + tonos, stretching, tone; see tone.]
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. (Pathology) pathol lack of normal tone or tension, as in muscles; abnormal relaxation of a muscle
2. (Phonetics & Phonology) phonetics lack of stress or accent on a syllable or word
[C17: from Latin atonia, from Greek: tonelessness, from atonos slack, from a-1 + tonos tone]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈæt n i)

also a•to•ni•a

(əˈtoʊ ni ə, eɪˈtoʊ-)

1. lack of tone or energy; muscular weakness, esp. in a contractile organ.
2. lack of stress accent.
[1685–95; < Late Latin atonia < Greek, derivative of átonos unaccented, languid, literally, toneless. See a-6, tone]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

atonicity, atony

lack of tone or tonus in the body; poor muscular condition. Cf. tonicity.atonic, adj.
See also: Body, Human
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atony - lack of normal muscular tension or tonus
condition, status - a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Clybourne Park, which has also won aTony Award for Best Play, focuses on bigotry and race relations America.
MATCH REPORTS: PAGES 54, 55 GO NOW TONY Wenger warns Adams: Quit and wait before becoming boss By DARREN LEWIS RSENE WENGER last night pleaded with Highbury ace ATony Adams to quit football.
It stuck in the nation's mind and 20-odd years on, watching the repeats on Netflix, you still can't hear that sweet, romantic question from Deborah (Leslie Ash): "What are you thinking, Tony?" without wincing in anticipation aTony, thought fixed firmly on th bedroom, tells he exactly what he' thinking.
Obstetric complications include uterine atony and prolonged labour requiring caesarean delivery, whereas anaesthetic complications may result from medications used for general anaesthesia.
Compression sutures are most often used in the setting of refractory uterine atony. They also may be helpful for controlling focal atony or bleeding from a placental implantation site.
POUR can result in bladder atony and increase the risk of urinary tract infection and sepsis [1] which leads to increased hospital stay and expenditure.
In addition, women with preeclampsia who are receiving magnesium sulfate are at risk for postpartum hemorrhage due to uterine atony and should be managed accordingly.
In 10(30%) patients EOH was performed for uncontrollable hemorrhage due to uterine atony, followed by a morbidly adherent placenta (28%).
The major causes of death from haemorrhage were bleeding associated with caesarean delivery (CD) (34.9%), uterine rupture (15.1%), abruptio placentae (12.9%), uterine atony (9.5%) and retained placenta (6.9%).
The causes of PPH were as follows: postpartum atony in 212 patients, placental invasion anomalies in 81 patients, a uterine rupture in 7 patients, severe retroperitoneal hematoma secondary to lower genital tract injury in 8 patients, and uterine inversion in 2 patients.