different between lactase vs null
lactase
English
Etymology
lacto- +? -ase
Noun
lactase (countable and uncountable, plural lactases)
- (biochemistry, organic chemistry) A ?-galactosidase enzyme that is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers.
Synonyms
- (?-galactosidase enzyme): lactase-phlorizin hydrolase
Translations
Anagrams
- acetals, at scale
Dutch
Etymology
Probably borrowed. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.
Pronunciation
- IPA(key): /?l?k?ta?.z?/
- Hyphenation: lac?ta?se
- Rhymes: -a?z?
Noun
lactase f (plural lactases)
- lactase
Portuguese
Noun
lactase f (plural lactases)
- (biochemistry, organic chemistry) lactase (a ?-galactosidase enzyme)
Spanish
Verb
lactase
- First-person singular (yo) imperfect subjunctive form of lactar.
- Third-person singular (él, ella, also used with usted?) imperfect subjunctive form of lactar.
lactase From the web:
- what's lactase enzyme
- what lactose does
- what lactase do to milk
- what lactase deficiency
- lactase what does it do
- lactase what kind of compound
- lactase what does it mean
- what is lactase persistence
null
English
Alternative forms
- Ø (linguistics, abbreviation)
- ? (mathematics, abbreviation)
Etymology
Borrowed from Middle French nul, from Latin n?llus.
Pronunciation
- (UK, US) IPA(key): /n?l/
- Rhymes: -?l
Noun
null (plural nulls)
- A non-existent or empty value or set of values.
- Zero quantity of 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.
- Since no date of birth was entered for the patient, his age is null.
- One of the beads in nulled work.
- (statistics) Null hypothesis.
Translations
Adjective
null (comparative more null, superlative most null)
- Having no validity; "null and void"
- Insignificant.
- 1924, Marcel Proust, Within a Budding Grove:
- 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.
- 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.
Antonyms
- antinull
- non-null
Derived terms
- null determiner
- nullary
- nullity
Verb
null (third-person singular simple present nulls, present participle nulling, simple past and past participle nulled)
- (transitive, archaic) To nullify; to annul.
- To form nulls, or into nulls, as in a lathe.
- (computing, slang, transitive) To crack; to remove restrictions or limitations in (software).
Related terms
- annul
- nulled work
See also
- nil
Cimbrian
Etymology
From Latin n?llus (“none”).
Numeral
null
- (Luserna) zero
References
- “null” in Patuzzi, Umberto, ed., (2013) Ünsarne Börtar [Our Words], Luserna, Italy: Comitato unitario delle isole linguistiche storiche germaniche in Italia / Einheitskomitee der historischen deutschen Sprachinseln in Italien
Estonian
Numeral
null
- zero
Faroese
Etymology
From Latin nullus.
Pronunciation
- IPA(key): /n?l?/
- Rhymes: -?l?
Numeral
null
- zero
Noun
null n (genitive singular nuls, plural null)
- (mathematics) the numeric symbol that represents the cardinal number zero
Declension
German
Etymology
From the noun Null (“the number zero”), from Italian nulla, from Latin nulla, feminine singular of nullus (“no, none”).
Pronunciation
- IPA(key): /n?l/
Numeral
null
- zero; nil; nought; (tennis) love (integer number between -1 and 1, denoting no quantity at all)
- (colloquial) zero; no
- Synonym: (überhaupt) kein
Coordinate terms
Adjective
null (not comparable)
- (specialist, law, chiefly predicative) null (having no validity)
Declension
Derived terms
- null und nichtig (also in common use)
Further reading
- “null” in Duden online and “null” in Duden online; cp. “null” in Duden online and “null” in Duden online
- “null” in Digitales Wörterbuch der deutschen Sprache; cp. “Null” in Digitales Wörterbuch der deutschen Sprache
Hunsrik
Pronunciation
- IPA(key): /nul/
Numeral
null
- zero
Further reading
- Online Hunsrik Dictionary
Norwegian Bokmål
Etymology
From Latin nullus (“no one, none, no”), from Proto-Italic *ne oinolos, from Proto-Italic *oinos (“one”), from Proto-Indo-European *óynos (“one, single”).
Determiner
null
- no (determiner: not any)
- ha null penger - to have no money
Numeral
null
- zero, nought, nil
Noun
null m (definite singular nullen, indefinite plural nuller, definite plural nullene)
null n (definite singular nullet, indefinite plural null or nuller, definite plural nulla or nullene)
- zero (numeric symbol of zero), nought, nil
- a nobody or nonentity (derogatory about a person)
Derived terms
- nullstille
- nulltoleranse
- nullvekst
References
- “null” in The Bokmål Dictionary.
Norwegian Nynorsk
Etymology
From Latin nullus
Determiner
null
- no (determiner: not any)
- ha null pengar - to have no money
Numeral
null
- zero, nought, nil
Noun
null m (definite singular nullen, indefinite plural nullar, definite plural nullane)
null n (definite singular nullet, indefinite plural null, definite plural nulla)
- zero (numeric symbol of zero), nought, nil
- a nobody or nonentity (derogatory about a person)
Derived terms
- nulltoleranse
- nullvekst
References
- “null” in The Nynorsk Dictionary.
Pennsylvania German
Etymology
Compare German null.
Numeral
null
- zero
null From the web:
- what null means
- what nullified the missouri compromise
- what nullifies wudu
- what null hypothesis
- what nullifies fasting
- what nullify means
- what null and alternative hypothesis
- what nullifies your fast
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