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)

  1. Depending on the throw of a die; random, arising by chance.
    Synonyms: random, stochastic
  2. (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.

A set of Tefillin.jpg

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.

synanthrope

 A synanthrope (from ancient Greek σύν sýn "together, with" and ἄνθρωπος ánthrōpos "man") is an organism that evolve...