Methyl vs Null - What's the difference?
methyl | null |
(organic compound) The univalent hydrocarbon radical, CH3, formally derived from methane by the loss of a hydrogen atom; a compound or part of a compound formed by the attachment of such a radical.
* 1973 , Robert E. Cornish, Vitamin and Mineral Deficiencies ,
* 2003 , Russell Timkovich, 73: The Family of d-Type Hemes: Tetrapyrroles with Unusual Substituents'', Karl M. Kadish, Kevin M. Smith, Roger Guilard (editors), ''The Porphyrin Handbook , Volume 12: The Iron and Cobalt Pigments: Biosynthesis, Structure and Degradation,
* 2005 , Bruce A. Hathaway, Organic Chemistry the Easy Way ,
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 methyl and null
is that methyl is methyl while null is zero, nil; the cardinal number before einn.methyl
English
(wikipedia methyl)Noun
(en noun)page 119,
- You might point out in the theory of oxidation of oils, in development of rancidity in oils, that many methyls' accelerate this oxidation of oils. I do not want to burden you with a lecture on chemistry but there are some ' methyls like iron which has both a valence of two and of three. Another example is cobalt which has a valence of both two and three.
page 134,
- The southern acetates must be decarboxylated to methyls .
page 38,
- The most stable form has the groups staggered and the methyls as far from each other as possible (DA[dihedral angle] = 180°).
Derived terms
* dimethyl * methyl alcohol * methyl blue * methyl group * methyl radical * methylate * methylotrophic * tetramethyl * trimethylnull
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.