Definition of alternant in English:

alternant

Syllabification: al·ter·nant
Pronunciation: /ˈôltərnənt
 
/

noun

An alternative form of a word or other linguistic unit; a variant.
More example sentences
  • The most common alternant is EAT, though it is not obligatory - indeed, the oldest example I have found so far, from 1882, uses DRINK SLEEP THINK, with no EAT.
  • Hence, the voiced alternants induced by Verner's Law may be expected in both subjunctive pret. singular and plural.
  • All observed asymmetries between the two alternants are shown to fall out naturally from this and related structural distinctions.

adjective

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Alternating; changing from one to the other.
More example sentences
  • The ones with even numbers of atoms are even alternant, with odd numbers, they are odd alternant.
  • A conjugated system of electrons is termed alternant if its atoms can be divided into two sets so that no atom of one set is directly linked to any other atom of the same set.
  • A simple rule is that all aromatic and conjugated hydrocarbons consisting of even membered rings and any kind of chain are alternant hydrocarbons.

Origin

mid 17th century: from Latin alternant- 'doing things by turns', from the verb alternare (see alternate).

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