Source : Webster's Revised Unabridged Dictionary (1913)

Search \Search\, v. t. [imp. & p. p. {Searched}; p. pr. & vb. n.
   {Searching}.] [OE. serchen, cerchen, OF. cerchier, F.
   chercher, L. circare to go about, fr. L. circum, circa,
   around. See {Circle}.]
   1. To look over or through, for the purpose of finding
      something; to examine; to explore; as, to search the city.
      ``Search the Scriptures.'' --John v. 39.

            They are come to search the house.    --Shak.

            Search me, O God, and know my heart.  --Ps. cxxxix.
                                                  23.

   2. To inquire after; to look for; to seek.

            I will both search my sheep, and seek them out.
                                                  --Ezek. xxxiv.
                                                  11.

            Enough is left besides to search and know. --Milton.

   3. To examine or explore by feeling with an instrument; to
      probe; as, to search a wound.

   4. To examine; to try; to put to the test.

   {To search out}, to seek till found; to find by seeking; as,
      to search out truth.

   Syn: To explore; examine; scrutinize; seek; investigate; pry
        into; inquire.

Searching \Search"ing\, a.
   Exploring thoroughly; scrutinizing; penetrating; trying; as,
   a searching discourse; a searching eye. ``Piercing,
   searching, biting, cold.'' --Dickens. -- {Search"ing*ly},
   adv. -- {Search"ing*ness}, n.

Source : WordNet®

searching
     adj 1: diligent and thorough in inquiry or investigation; "a
            probing inquiry"; "a searching investigation of their
            past dealings" [syn: {inquisitory}, {probing}]
     2: having keenness and forcefulness and penetration in thought,
        expression, or intellect; "searching insights"; "trenchant
        criticism" [syn: {trenchant}]
     3: exploring thoroughly