פִּשְׁפּוּשׁ, פִּי׳ m. (פִּשְׁפֵּשׁ I) 1) investigation. Targ. Y. Lev. XIX, 20 (h. text בקרת). —2) that which has been, or is to be searched out, depth, recess. Targ. Job VIII, 8 (h. text חקר). Ib. XXXVIII, 16; a. e.—Pl. פִּשְׁפּוּשִׁין, פִּי׳. Targ. Ps. XCV, 4.