Monday, February 28, 2022
Sunday, February 27, 2022
hydroxy
A hydroxy or hydroxyl group is a functional group with the chemical formula -OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry, alcohols and carboxylic acids contain one or more hydroxy groups. Both the negatively charged anion HO−, called hydroxide, and the neutral radical HO•, known as the hydroxyl radical, consist of an unbonded hydroxyl group.
Saturday, February 26, 2022
Friday, February 25, 2022
flame arrester
A flame arrester (also spelled arrestor), deflagration arrester, or flame trap is a device that stops fuel combustion by extinguishing the flame.
Thursday, February 24, 2022
aleatory
aleatory (not comparable)
- Depending on the throw of a die; random, arising by chance.
- Synonyms: random, stochastic
- (art, music) Produced with an element of chance (aleatoricism).
Wednesday, February 23, 2022
phylacteries
Tefillin (/ˈtfɪlɪn/; Israeli Hebrew: תְּפִלִּין / תְּפִילִּין; Askhenazic pronunciation: [tfiˈlin]) or phylacteries, are a set of small black leather boxes with leather straps containing scrolls of parchment inscribed with verses from the Torah. Tefillin are worn by adult Jews during weekday morning prayers.
Tuesday, February 22, 2022
double-barrelled name
A double-barrelled name is a type of compound surname, typically featuring two words (occasionally more), often joined by a hyphen. Examples of some notable people with double-barrelled names include Winnie Madikizela-Mandela, Trent Alexander-Arnold and Sacha Baron Cohen.
Monday, February 21, 2022
Sunday, February 20, 2022
Saturday, February 19, 2022
hyperurbanism
hyperurbanism (plural hyperurbanisms)
- (linguistics) the creation of a non-standard form by mimicking the standard dialect.
Friday, February 18, 2022
Thursday, February 17, 2022
zwitterion
In chemistry, a zwitterion (/ˈtsvɪtəˌraɪən/ TSVIT-ə-rye-ən; from German Zwitter [ˈtsvɪtɐ] 'hermaphrodite'), also called an inner salt or dipolar ion, is a molecule that contains an equal number of positively- and negatively-charged functional groups. With amino acids, for example, in solution a chemical equilibrium will be established between the "parent" molecule and the zwitterion.
Sulfamic acid isomers, with the zwitterion (right)
Wednesday, February 16, 2022
doublets
In etymology, two or more words in the same language are called doublets or etymological twins or twinlings (or possibly triplets, and so forth) when they have different phonological forms but the same etymological root. Often, but not always, the words entered the language through different routes. Given that the kinship between words that have the same root and the same meaning is fairly obvious, the term is mostly used to characterize pairs of words that have diverged at least somewhat in meaning.[1] For example, English pyre and fire are doublets with merely associated meanings despite both descending ultimately from the same Proto-Indo-European (PIE) word *péh₂ur.
Tuesday, February 15, 2022
Monday, February 14, 2022
Azoospermia
Azoospermia is the medical term used when there are no sperm in the ejaculate. It can be “obstructive,” where there is a blockage preventing sperm from entering the ejaculate, or it can be “nonobstructive” when it is due to decreased sperm production by the testis.
Sunday, February 13, 2022
kinase
In biochemistry, a kinase is an enzyme that catalyzes the transfer of phosphate groups from high-energy, phosphate-donating molecules to specific substrates.
Saturday, February 12, 2022
Friday, February 11, 2022
indefensible
indefensible (comparative more indefensible, superlative most indefensible)
- Not defensible; not capable of being defended
- Synonym: vulnerable
- Incapable of being justified or excused
- Synonyms: inexcusable, unpardonable
- Incapable of being explained
- Synonyms: untenable, insupportable, invalid
Thursday, February 10, 2022
undefendable
undefendable (comparative more undefendable, superlative most undefendable)
- Not capable of being defended
Wednesday, February 9, 2022
Thursday, February 3, 2022
bolus
In medicine, a bolus (from Latin bolus, ball) is the administration of a discrete amount of medication, drug, or other compound within a specific time, generally 1–30 minutes, in order to raise its concentration in blood to an effective level. The administration can be given by injection: intravenously, intramuscularly, intrathecally, subcutaneously, or by inhalation.[clarification needed] The article on routes of administration provides more information, as the preceding list of ROAs is not exhaustive.
Wednesday, February 2, 2022
Transfection
Transfection is the process of deliberately introducing naked or purified nucleic acids into eukaryotic cells. E.g. shooting DNA into a nucleus
talk nineteen to the dozen
to speak rapidly and without stopping
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Nureongi (누렁이) and Hwangu (황구; 黃狗) are Korean terms meaning "Yellow Dog" used to refer to tannish mongrel or landrace of dog in...
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Engrams are a hypothetical means by which memory traces are stored as biophysical or biochemical changes in the brain (and other neural...