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.
Compare -in1.

< Latin -īnus, -inus < Greek -inos

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

< French < Latin -ina, orig. feminine of -inus; also representing Greek -inē, feminine noun suffix

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World English Dictionary
suffix forming adjectives
1.  of, relating to, or belonging to: saturnine
2.  consisting of or resembling: crystalline
[from Latin -īnus, from Greek -inos]

suffix forming nouns
1.  indicating a halogen: chlorine
2.  indicating a nitrogenous organic compound, including amino acids, alkaloids, and certain other bases: alanine; nicotine; purine
3.  Also: -in indicating a chemical substance in certain nonsystematic names: glycerine
4.  indicating a mixture of hydrocarbons: benzine
5.  indicating a feminine form: heroine
6.  an obsolete equivalent of -yne
[via French from Latin -ina (from -inus) and Greek -inē]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Medical Dictionary

-ine 2

  1. or -in A chemical substance: bromine, amine, quinine.

  2. Amino acid: glycine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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