1. a suffix of adjectives of Greek or Latin origin, meaning “of or pertaining to,” “of the nature of,” “made of,” “like”: asinine; crystalline; equine; marine.

  1. a suffix, of no assignable meaning, appearing in nouns of Greek, Latin, or French origin: doctrine; famine; routine.
  2. a noun suffix used particularly in chemical terms (bromine; chlorine), and especially in names of basic substances (amine; aniline; caffeine; quinine; quinoline).Compare -in2.
  3. a suffix of feminine nouns (heroine), given names (Clementine), and titles (landgravine).

suffix forming adjectives

  1. of, relating to, or belonging tosaturnine
  2. consisting of or resemblingcrystalline

suffix forming nouns

  1. indicating a halogenchlorine
  2. indicating a nitrogenous organic compound, including amino acids, alkaloids, and certain other basesalanine; nicotine; purine
  3. Also: -in indicating a chemical substance in certain nonsystematic namesglycerine
  4. indicating a mixture of hydrocarbonsbenzine
  5. indicating a feminine formheroine
  6. an obsolete equivalent of -yne

suffix used to form adjectives from nouns, from French -ine, fem. of -in, or directly from Latin -inus “of, like.”


chemical suffix, sometimes -in, though modern use distinguishes them; early 19c., from French -ine, from Latin -ina, fem. form of suffix used to form adjectives from nouns. In French commonly used to form words for derived substances, hence its extended use in chemistry.


  1. or -in A chemical substance:bromine, amine, quinine.
  2. Amino acid:glycine.

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