1. [n]  the case indicating the agent in passive sentences or the instrument or manner or place of the action described by the verb
2. [adj]  tending to ablate; i.e. to be removed or vaporized at very high temperature; "ablative material on a rocket cone"
3. [adj]  (linguistics) relating to the ablative case

ABLATIVE is a 8 letter word that starts with A.

1. \Ab"la*tive\, a. [F. ablatif, ablative, L. ablativus
   fr. ablatus. See {Ablation}.]
   1. Taking away or removing. [Obs.]
            Where the heart is forestalled with misopinion,
            ablative directions are found needful to unteach
            error, ere we can learn truth.        --Bp. Hall.
   2. (Gram.) Applied to one of the cases of the noun in Latin
      and some other languages, -- the fundamental meaning of
      the case being removal, separation, or taking away.
   

2. \Ab"la*tive\, (Gram.)
   The ablative case.
   {ablative absolute}, a construction in Latin, in which a noun
      in the ablative case has a participle (either expressed or
      implied), agreeing with it in gender, number, and case,
      both words forming a clause by themselves and being
      unconnected, grammatically, with the rest of the sentence;
      as, Tarquinio regnante, Pythagoras venit, i. e.,
      Tarquinius reigning, Pythagoras came.