Watershed vs Null - What's the difference?
As nouns the difference between watershed and null
is that watershed
is (hydrology) the topographical boundary dividing two adjacent catchment basins, such as a ridge or a crest while null
is a non-existent or empty value or set of values.
As an adjective null is
having no validity, "null and void".
As a verb null is
to nullify; to annul.
(hydrology) The topographical boundary dividing two adjacent catchment basins, such as a ridge or a crest.
(US) A region of land within which water flows down into a specified body, such as a river, lake, sea, or ocean; a drainage basin.
A critical point marking a change in course or development.
(Canada, British) The time after which material of more adult nature (violence, swear words, sex) may be broadcast on television or radio, either one laid down or one contrived (e.g. when children are not watching...)
* (boundary between two adjacent catchment basins) water parting, drainage divide, water divide, divide
* (drainage basin) catchment basin, catchment, catchment area, drainage area, river basin, water basin
* (time after which adult material may be broadcast) safe harbor (US)
* (critical point marking a change in course or development) turning point
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.
- (Francis Bacon)
One of the beads in nulled work.
(statistics) null hypothesis
- Since no date of birth was entered for the patient, his age is null .
Having no validity, "null and void"
* 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.
- 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.
to nullify; to annul