expression

(redirected from Regular expression)
Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.

expression

 [eks-presh´un]
1. the aspect or appearance of the face as determined by the physical or emotional state.
2. the act of squeezing out or evacuating by pressure.
gene expression
1. the flow of genetic information from gene to protein.
2. the process, or the regulation of the process, by which the effects of a gene are manifested.
3. the manifestation of a heritable trait in an individual carrying the gene or genes that determine it.

ex·pres·sion

(eks-presh'ŭn),
1. Squeezing out; expelling by pressure.
2. Mobility of the features giving a particular emotional significance to the face. Synonym(s): facies (4) [TA]
3. Any act by a person.
4. Something that manifests something else.
5. The act of allowing information to become manifest.
6. A mathematical function consisting of a combination of constants, variables, other functions, and mathematical operations.

expression

/ex·pres·sion/ (eks-presh´un)
1. the aspect or appearance of the face as determined by the physical or emotional state.
2. the act of squeezing out or evacuating by pressure.

gene expression 
1. the flow of genetic information from gene to protein.
2. the process, or the regulation thereof, by which the effects of a gene are manifested.
3. the manifestation of a heritable trait.

expression

(ĭk-sprĕsh′ən)
n.
1. The act of pressing or squeezing out.
2. Genetics The act or process of expressing a gene.

expression

[ikspresh′ən]
Etymology: L, exprimere, to express
1 the indication of a physical or emotional state through facial appearance or vocal intonation.
2 the act of pressing or squeezing to expel something, such as milk from the breast when lactating or the fetus from the uterus by exertion of pressure on the abdominal wall.
3 (in genetics) the detectable effect or appearance in the phenotype of a particular trait or condition. See also expressivity. express, v.

ex·pres·sion

(eks-presh'ŭn)
1. Squeezing out; expelling by pressure.
2. Mobility of the features giving a particular emotional significance to the face.
Synonym(s): facies (3) [TA] .
3. Something that manifests something else.
[L. pp. expressus, fr. exprimere, to press out]

expression

see GENE EXPRESSION.

expression

physiological manifestation of gene activity

expression (ek·spreˑ·shn),

n the mechanical method used to extract essential oils from plant material by crushing and applying pressure. Commonly used for extracting fluids from citrus fruits like lemons and oranges.

ex·pres·sion

(eks-presh'ŭn)
1. Squeezing out; expelling by pressure.
2. Mobility of the features giving a particular emotional significance to the face.
Synonym(s): facies (4) [TA] .

expression

1. the aspect or appearance of the face as determined by the physical or emotional state.
2. the act of squeezing out or evacuating by pressure.
3. the manifestation of a heritable trait in an individual carrying the gene or genes which determine it.

expression library
a number of different DNA molecules cloned into a single expression vector.
expression vector
a cloning vector that carries a gene into the host cell and promotes its expression.

Patient discussion about expression

Q. where do the expression "going back on the wagon " come from?

A. http://www.phrases.org.uk/meanings/on-the-wagon.html

Q. What role does emotion have in the life of someone with autism? I just find the whole disorder of autism hard to understand because I'm a really emotional person. I'm especially interested in how people with mild autism or Asperger's can function fine but then when it comes to feeling empathy they have such trouble. I guess my question is how such people experience emotion--are these people actually unable to care about others? My intention is not to sound ignorant, I'm genuinely curious.

A. I have asperger's and most everything for me is logically analyzed and I have a difficulty knowing what emotion goes with certain situations and how the emotion manifests itself within me.
I care about others, I just cannot always put myself in their shoes and feel what they are feeling.

More discussions about expression
References in periodicals archive ?
Further speed optimization concerning detection via search character coincidence in headers or payload of packets using wildcard Perl Compatible Regular Expressions (PCRE) [9] expressions performed in GP.
Finite automata, digraph connectivity, and regular expression size.
Table 1: Regular expression symbols and handled actions Description Action Order \ Escape character((\d) is Delete this symbol and 1 any numeric characters) the next character [] Any character in the Delete characters 2 bracket([a|b|c]=a|b|c) from"["to"]" + One or more repetition of Delete this symbol 3 previous character .
For example, if we create an FSA based on the regular expression a(b|c) and save it as abc.
At its most general, the problem of searching a continuous stream of text with a regular expression may be characterized as follows: "Given a string x and a regular expression r, locate all substrings of x that match r.
the algorithm can handle most of the common types of queries, including arbitrary regular expressions, and several variations of closeness measure.
Regular Expressions are the most effective means of conducting this examination, but the filtering process can choke servers and gateways by requiring significant system resources.
0 supports regular expressions and works with Excel 2003-2010 to generate literally any kind of sorted-list application from an Excel spreadsheet.
The injection mechanism (Zeus's main "work horse") now uses sophisticated regular expressions based on PCRE as well, which helps avoid detection.
A custom regular expression can now be saved in favorites for further use.
To overcome these challenges creative techniques to leverage x86 or regular expression processors are necessary to scale designs to 40 Gbps.
The solution features the seamless integration of Netronome's NFP-3240 network flow processors and Titan IC's Regular Expression Processor (RXP) technology.