HG

Pronunciation (US):

(GB):

 Dictionary entry overview: What does Hg mean? 

• HG (noun)
  The noun HG has 2 senses:

1. a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures

2. 100 grams

  Familiarity information: HG used as a noun is rare.

 Dictionary entry details 

• HG (noun)

Sense 1

Meaning:

A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures

Classified under:

Nouns denoting substances

Synonyms:

atomic number 80; Hg; hydrargyrum; mercury; quicksilver

Hypernyms ("Hg" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Holonyms ("Hg" is a substance of...):

cinnabar (a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury)

calomel; mercurous chloride (a tasteless colorless powder used medicinally as a cathartic)

Sense 2

Meaning:

100 grams

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

hectogram; hg

Hypernyms ("hg" is a kind of...):

metric weight unit; weight unit (a decimal unit of weight based on the gram)

Meronyms (parts of "hg"):

dag; decagram; dekagram; dkg (10 grams)

Holonyms ("hg" is a part of...):

kg; kilo; kilogram (one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites)

 Context examples 

A disorder characterized by a pathological increase in blood pressure; a repeatedly elevation in the blood pressure exceeding 140 over 90 mm Hg.

(Hypertension, NCI Thesaurus/CTCAE)

Sudden fall of the blood pressure of at least 20/10 mm Hg when a person stands up.

(Orthostatic Hypotension, NCI Thesaurus)

The diastolic pressure is generally greater than 130 mm Hg.

(Malignant Hypertension, NLM, Medical Subject Headings)

An element with atomic symbol Hg, atomic number 80, and atomic weight 200.59; a heavy, silvery-white metal, liquid at room temperature, a rather poor conductor of heat and a fair conductor of electricity.

(Mercury, NCI Thesaurus)

The presence of cardiogenic shock (systolic BP less than 90 mm Hg) for greater than 30 minutes, not responsive to fluid resuscitation alone, and felt to be secondary to cardiac dysfunction.

(Killip Class IV, NCI Thesaurus/CDISC)

Pathological increase in blood pressure defined as one of the following: History of hypertension diagnosed and treated with medication, diet, and/or exercise; On at least 2 separate occasions, documented blood pressure greater than 140 mm Hg systolic and/or 90 mm Hg diastolic in patients without diabetes or chronic kidney disease, or blood pressure greater than 130 mm Hg systolic or 80 mm Hg diastolic in patients with diabetes or chronic kidney disease; Currently on pharmacological therapy for the treatment of hypertension.

(Hypertension, NCI Thesaurus/CDISC)

More than 9,300 adults who were at least 50 years old and had a high risk for cardiovascular disease received either standard treatment, which lowered systolic blood pressure, the first of two numbers measured during an exam, to less than 140 mm Hg, or intensive treatment to lower the same pressure reading below 120 mm Hg.

(Intensive blood pressure control may slow age-related brain damage, National Institutes of Health)

An event in the personal medical history of sustained, inadequate tissue perfusion secondary to cardiac dysfunction, generally defined as systolic blood pressure of less than 90 mm Hg of more than 1 hour and not responsive to fluid resuscitation alone.

(History of Cardiogenic Shock, NCI Thesaurus)

Cardiogenic shock is defined as a sustained (greater than30 minutes) episode of systolic blood pressure less than90 mm Hg, and/or cardiac index less than2.2 L/min/m2 determined to be secondary to cardiac dysfunction, and/or the requirement for parenteral inotropic or vasopressor agents or mechanical support (e.g., Intra aortic balloon pump (IABP), extracorporeal circulation, ventricular assist devices) to maintain blood pressure and cardiac index above those specified levels.

(Cardiogenic Shock, NCI Thesaurus/CDISC)