different between allotroph vs polymer

English

Etymology

allo- +? -troph

Noun

allotroph (plural allotrophs)

1. (rare) Synonym of heterotroph
   • 1970, Stephen H. Dole, Habitable Planets for Man, page 142:

     A living thing using only inorganic materials as food, as opposed to heterotrophs, allotrophs, parasites, or saprophytes, which depend on other organisms for nutrition.

   • 1978, Israel Journal of Entomology, volumes 12-14, page 138:

     It is possible that at a young age these secondary host plants (allotrophs) have a similar chemistry to that of the primary hosts that is also attractant and palatable for the beetles. It is also possible that the allotrophs are actually phytochemically […]

Usage notes

• Allotrophe is rare; indeed, it occurs as a misspelling of allotrope (even in college-level reference works) almost as often as it occurs as asynonym of heterotroph.

Translations

References

English

Etymology

poly- +? -mer, from Ancient Greek ????? (polús, “many”) + ????? (méros, “part”). Coined in 1833 by Jöns Jacob Berzelius, although his definition was quite different from the modern one.

Pronunciation

• (UK) IPA^(key): /?p?l.?.m?/
• (US) IPA^(key): /?p?.l?.m?/
• Hyphenation: poly?mer

Noun

polymer (countable and uncountable, plural polymers)

1. (organic chemistry) A long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar small molecules called monomers. A polymer is formed by polymerization, the joining of many monomer molecules.

   Hyponyms: polynucleotide, polypeptide, polysaccharide

2. A material consisting of such polymer molecules.

Derived terms

Related terms

Translations

See also

Czech

Noun

polymer m

1. polymer

Further reading

• polymer in P?íru?ní slovník jazyka ?eského, 1935–1957
• polymer in Slovník spisovného jazyka ?eského, 1960–1971, 1989

German

Adjective

polymer (not comparable)

1. polymeric

Declension

Further reading

• “polymer” in Duden online

Norwegian Bokmål

Etymology

From poly- +? Ancient Greek ????? (méros, “part”).

Pronunciation

Noun

polymer m (definite singular polymeren, indefinite plural polymerer, definite plural polymerene)

1. a polymer

Derived terms

• polymerisere

References

• “polymer” in The Bokmål Dictionary.

Norwegian Nynorsk

Etymology

From poly- +? Ancient Greek ????? (méros, “part”).

Noun

polymer m (definite singular polymeren, indefinite plural polymerar, definite plural polymerane)

1. a polymer

Derived terms

• polymerisere

References

• “polymer” in The Nynorsk Dictionary.