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Chemical nomenclature however (with IUPAC nomenclature as the best example) is necessarily more restrictive: Its purpose is to standardize communication and practice so that, when a chemical term is used it has a fixed meaning relating to chemical structure, thereby giving insights into chemical properties and derived molecular functions. These ...
This term is often used in organic chemistry. For example, from the word ether , referring to an oxygen-containing compound having the general chemical structure R−O−R′ , where R and R′ are organic functional groups and O is an oxygen atom, comes the word thioether , which refers to an analogous compound with the general structure R−S ...
Nomenclature of inorganic and organic chemistry; Standardization of atomic weights; Standardization of physical constants; Editing tables of properties of matter; Establishing a commission for the review of work; Standardization of the formats of publications; Measures required to prevent repetition of the same papers.
Meaning Origin language and etymology Example(s) quadr(i)-four Latin quattuor: quadriceps: radi-radiation Latin radiō, I radiate, emit beams; from radius, ray of light, spoke of a wheel radiowave: radic-referring to the beginning, or the root, of a structure, usually a nerve or a vein Latin rādīx, root radiculopathy: re-again, back Latin re ...
The names "caffeine" and "3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione" both signify the same chemical compound.The systematic name encodes the structure and composition of the caffeine molecule in some detail, and provides an unambiguous reference to this compound, whereas the name "caffeine" simply names it.
The only place it is found is the pits of Hathsin, where small nuggets form in geodes mined by slaves. Using allomancy near the crystals that form the geodes, destroys them. When used by a Feruchemist, it allows them to store age and, if compounded, can cause a complete stop of ageing. Its name comes from the holder of the shard, Ati.
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The root language of a numerical prefix need not be related to the root language of the word that it prefixes. Some words comprising numerical prefixes are hybrid words. In certain classes of systematic names, there are a few other exceptions to the rule of using Greek-derived numerical prefixes.