The Collaborative International Dictionary of English v.0.48:

Tablet \Ta"blet\, n. [F. tablette, dim. of table. See Table.]
   1. A small table or flat surface.
      [1913 Webster]

   2. A flat piece of any material on which to write, paint,
      draw, or engrave; also, such a piece containing an
      inscription or a picture.
      [1913 Webster]

   3. Hence, a small picture; a miniature. [Obs.]
      [1913 Webster]

   4. pl. A kind of pocket memorandum book.
      [1913 Webster]

   5. A flattish cake or piece; as, tablets of arsenic were
      formerly worn as a preservative against the plague.
      [1913 Webster]

   6. (Pharm.) A solid kind of electuary or confection, commonly
      made of dry ingredients with sugar, and usually formed
      into little flat squares; -- called also lozenge, and
      troche, especially when of a round or rounded form.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tablet
    n 1: a slab of stone or wood suitable for bearing an inscription
    2: a number of sheets of paper fastened together along one edge
       [syn: pad, pad of paper, tablet]
    3: a small flat compressed cake of some substance; "a tablet of
       soap"
    4: a dose of medicine in the form of a small pellet [syn:
       pill, lozenge, tablet, tab]

The Free On-line Dictionary of Computing (19 January 2023):

TABLET

   A query language.

   ["Human Factor Comparison of a Procedural and a Non-procedural
   Query Language", C. Welty et al, ACM Trans Database Sys
   6(4):626-649 (Dec 1981)].

   (1994-11-23)