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Related to hypotonicity: hypertonicity


1. Having less than normal tone or tension, as of muscles or arteries.
2. Chemistry Having the lower osmotic pressure of two solutions.

hy′po·to·nic′i·ty (-tə-nĭs′ĭ-tē) n.
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hypotonicity - (of a solution) the extent to which a solution has a lower osmotic pressure than some other
osmotic pressure - (physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane
hypertonicity - (of a solution) the extent to which a solution has a higher osmotic pressure than some other
2.hypotonicity - (of muscular tissue) the state of being hypotonic
tonicity, tonus, tone - the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli; "the doctor tested my tonicity"
hypertonia, hypertonus, hypertonicity - (of muscular tissue) the state of being hypertonic
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Moreover, several studies indicate that herbal products and plants could be effective in stabilizing the red blood cell membrane against hypotonicity, heat, or chemicals.
(4) Hypotonicity, hypertonicity, dystonia, irritability, lethargy and encephalopathy can be observed as neurological signs.
Water was essential to life, but because of its hypotonicity, could not be administered parenterally without other components.
Vaginal delivery can be traumatic for pelvic floor muscles and innervations, which can result in hypotonicity or reduced bladder sensitivity.
Mature eggs are sensitive to the conditions of their surrounding environment and may spontaneously develop cortical reaction in the absence of sperm cells, due to the influence of factors such as physical contact, hypotonicity of the medium and the presence of certain compounds.
Rhythmic activation of these muscles occurs during daytime respiration, but like skeletal muscles the hypotonicity of muscles occur during sleep and thus airway stability becomes dependent on pharyngeal size and pharyngeal tissue compliance.
Since electrophysiological investigations would yield normal results in hypotonicity associated with central causes, it is possible that a portion of these patients are included in the 55% normal EMG investigations.
Except for hypotonicity, no dysmorphic feature was determined in the physical examination.
A five-day-old female baby was referred to the Pediatric Genetics Outpatient Clinic because of facial palsy and hypotonicity. The patient was born from the first pregnancy of a 30-year-old mother as the first living child at the 38th gestational week by cesarean section.
Because of its hypotonicity and microorganisms, the saliva can contribute to cell death.
Gene analysis was made as the patient could have SMA since the refexes were weak and hypotonicity was present.