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  1. tri- love

Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. Three: trilobate.
  2. Occurring at intervals of three: trimonthly.
  3. Occurring three times during: triweekly.

Century Dictionary and Cyclopedia

  1. n. Specifically, in chem., a prefix to the names of compounds containing three atoms or combining units of some particular element or radical, as sulphur trioxid, SO3, and triethylamine, N(C2H5)3.
  2. n. A prefix of Latin and Greek origin, meaning ‘three.’

Wiktionary

  1. three
  2. chemistry Used in combination with a known element name (e.g. 'tri-silicon') to designate an unknown element that would reside three periods lower than the known element on a Mendeleev-type periodic table. See Mendeleev's predicted elements.

GNU Webster's 1913

  1. A prefix meaning three, thrice, threefold; as in tricolored, tridentate.
  2. (Chem.) A prefix (also used adjectively) denoting three proportional or combining part, or the third degree of that to the name of which it is prefixed; as in trisulphide, trioxide, trichloride.

Etymologies

  1. From Sanskrit  (tri-, "three"). (Wiktionary)
  2. Middle English, from Latin and Greek; see trei- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)

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