Mercury vs Null - What's the difference?
mercury | null |
A metal.
# A silvery-colored, toxic, metallic chemical element, liquid at room temperature, with atomic number 80 and symbol Hg.
# (science, historical) One of the elemental principles formerly thought to be present in all metals.
# The mercury as used in a barometer or thermometer; ambient temperature.
# (obsolete) Liveliness, volatility.
#* Bishop Burnet
A plant.
# An annual plant, Mercurialis annua , formerly grown for its medicinal properties; French mercury.
#* 1653 , (Nicholas Culpeper), The English Physician Enlarged , Folio Society 2007, p. 188:
# A similar edible plant, Chenopodium bonus-henricus , otherwise known as English mercury or allgood.
# (US, regional) The poison oak or poison ivy.
A non-existent or empty value or set of values.
Zero]] quantity of [[expression, expressions; nothing.
Something that has no force or meaning.
(computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
(computing) the attribute of an entity that has no valid value.
One of the beads in nulled work.
(statistics) null hypothesis
Having no validity, "null and void"
insignificant
* 1924 , Marcel Proust, Within a Budding Grove :
absent or non-existent
(mathematics) of the null set
(mathematics) of or comprising a value of precisely zero
(genetics, of a mutation) causing a complete loss of gene function, amorphic.
As nouns the difference between mercury and null
is that mercury is (dated) a carrier of tidings; a newsboy; a messenger while null is zero, nil; the cardinal number before einn.As a proper noun mercury
is (roman god) the roman god associated with speed, sometimes used as a messenger he wore winged sandals mercury corresponded to the greek god hermes.mercury
English
Noun
(-)- The mercury there has averaged 37.6C, 2.3C above the February norm.
- He was so full of mercury that he could not fix long in any friendship, or to any design.
- Towards the tops of the stalks and branches come forth at every joint in the male Mercury two small round green heads, standing together upon a short footstalk, which growing ripe are the seeds, not having any flower.
Synonyms
* azoth (in alchemy ) * hydrargyrum (in medical and sometimes chemical use ) * quicksilver (not in technical use )Derived terms
* argental mercury * cadmium mercury cell * dichloromercury * dimercury * dimethylmercury * eka-mercury * ethylmercury * fulminate of mercury * mecuricals * mercurate * mercurial * mercuriate * mercuric * mercurify * mercurio-syphilis * mercurochrome * mercurous * mercury arc, mercury arc rectifier, mercury arc valve * mercury bichloride, mercury dichloride * mercury cadmium telluride * mercury dichloride * mercury fulminate * mercury gilding * mercury goosefoot * mercury lamp * mercury perchloride * mercury poisoning * mercury pool * mercury protochloride * mercury rust * mercury selenide * mercury sulfide, mercury sulphide * mercury switch * mercury thermometer * mercury vapor lamp, mercury vapour lamp * mercury vapor pump, mercury vapour pump * mercury vapor rectifier, mercury vapour rectifier * methylmercury * red mercurySee also
* blue mass * calomel * cinnabar * cinnabarite * corderoite * corrosive sublimate * Good King Henry * livingstonite * sublimate * thimerosal, thiomersal English eponymsnull
English
Noun
(en noun)- (Francis Bacon)
- Since no date of birth was entered for the patient, his age is null .
Adjective
(en adjective)- In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.