[1] : The Collaborative International Dictionary of English v.0.48

gambier \gam"bier\, n. malayan.
   a the inspissated juice of a plant uncaria gambir
       growing in malacca. it is a powerful astringent, and,
       under the name of terra japonica, is used for chewing
       with the areca nut, and is exported for tanning and
       dyeing.
   b catechu. written also gambeer and gambir.
       1913 webster
see also:
uncaria gambir terra japonica gambeer gambir 

[2] : The Collaborative International Dictionary of English v.0.48

terra \ter"ra\, n. it.  l. see terrace.
   the earth; earth.
   1913 webster

   terra alba l., white earth com., a white amorphous
      earthy substance consisting of burnt gypsum, aluminium
      silicate kaolin, or some similar ingredient, as
      magnesia. it is sometimes used to adulterate certain
      foods, spices, candies, paints, etc.

   terra cotta. it., fr. terra earth + cotta, fem. of cotto
      cooked, l. coctus, p. p. of coquere to cook. see cook,
      n. baked clay; a kind of hard pottery used for statues,
      architectural decorations, figures, vases, and the like.
      

   terrae filius l., son of the earth, formerly, one
      appointed to write a satirical latin poem at the public
      acts in the university of oxford; -- not unlike the
      prevaricator at cambridge, england.

   terra firma l., firm or solid earth, as opposed to
      water.

   terra japonica. nl. same as gambier. it was formerly
      supposed to be a kind of earth from japan.

   terra lemnia l., lemnian earth, lemnian earth. see under
      lemnian.

   terra ponderosa l., ponderous earth min., barite, or
      heavy spar.

   terra di sienna. see sienna.
      1913 webster
see also:
terrace terra alba terra cotta cook terrae filius terra firma 
water terra japonica gambier terra lemnia lemnian 
terra ponderosa terra di sienna sienna 

[3] : The Collaborative International Dictionary of English v.0.48

catechu \cat"echu\, n. see cashoo. chem.
   a dry, brown, astringent extract, obtained by decoction and
   evaporation from the acacia catechu, and several other
   plants growing in india. it contains a large portion of
   tannin or tannic acid, and is used in medicine and in the
   arts. it is also known by the names terra japonica,
   cutch, gambier, etc. --ure. --dunglison.
   1913 webster
see also:
cashoo acacia catechu terra japonica cutch gambier 

Japonica >> J Words
Japonica, definition of term: Japonica
japonica_pag1.html

Terra >> T Words
Terra, definition of term: Terra
terra_pag1.html

Terra Incognita >> T Words
Terra Incognita, definition of term: Terra Incognita
terra+incognita_pag1.html

Terra Cotta >> T Words
Terra Cotta, definition of term: Terra Cotta
terra+cotta_pag1.html

Terra Firma >> T Words
Terra Firma, definition of term: Terra Firma
terra+firma_pag1.html