millimeter of mercury
1
5.0
- noun
- /ˈmɪlɪˌmiːtər əv ˈmɜrkjʊri/
- Specialized
:
milímetro de mercurio
- The partial pressure is also sometimes measured and expressed in millimeters of mercury (mmHg), although in the UK and Europe, kilopascals is the most commonly used unit of measurement.
- pressure of millimeters of mercury
Examples
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Hypertension was defined as systolic blood pressure greater than or equal to 140 millimeters of mercury, diastolic blood pressure greater than or equal to 90 millimeters of mercury, or being on antihypertensive medications.
Academic text (2012) -
Anti-embolism stockings have 18 mmHg labels, which mean that the pressure measurement for a pair is 18 millimeters of mercury.
Blog text (30) -
Then R must be in units of millimeters of mercury per liter per minute.
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And the vapor pressure can be given in millimetres of mercury or atmospheres, pounds per square inch and so forth.
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Units of measure are field-selectable and include bar, millibar, Pascal, inches of water or mercury, and millimeters of mercury.
Academic text (2001) -
Regardless of the device, the needle is injected into the affected compartment through the fascia, and pressure is measured in millimeters of mercury.
Academic text (2004) -
Among professional African Americans, systolic blood pressure was 9 to 10 millimeters of mercury lower among those reporting that they challenged unfair treatment and had not experienced lifetime racial discrimination.
Academic text (2012) -
In the Add Health sample, certified field interviewers measured respondents' resting, seated systolic and diastolic blood pressures (in millimeters of mercury) during home visits that occurred during the morning, afternoon, or evening hours.
Academic text (2016) -
Hypertension was defined as systolic blood pressure greater than or equal to 140 millimeters of mercury, diastolic blood pressure greater than or equal to 90 millimeters of mercury, or being on antihypertensive medications.
Academic text (2012) -
During the test, his blood pressure read 120 millimeters of mercury.
Synonyms
1
3.9
A measure of pressure used for blood and air, based on mercury height
1
7.6
A unit for measuring pressure equal to 1/760 of the air pressure at sea level
Surface Forms
Morphology
millimeter + of + mercury
The phrase is compositionally built from 'millimeter' and 'mercury' so a learner can infer it denotes a measure involving mercury (literally a millimetre of mercury, e.g. a column height), and many languages use the same construction (mmHg). However, recognizing that this construction specifically denotes a unit of pressure rather than a simple length or quantity requires domain/medical knowledge, so the meaning is not fully predictable to an average B1 learner.
Etymology
Millimeter of mercury comes from old glass tubes filled with mercury. The height of the mercury column, measured in millimeters, showed how much 'pressure' was pushing, so that height became the unit people use for measuring 'pressure' today.