puckering

Pucker \Puck"er\, v. t. & i. [imp. & p. p. {Puckered}; p. pr. &
   vb. n. {Puckering}.] [From {Poke} a pocket, small bag.]
   To gather into small folds or wrinkles; to contract into
   ridges and furrows; to corrugate; -- often with up; as, to
   pucker up the mouth. "His skin [was] puckered up in
   wrinkles." --Spectator.
   [1913 Webster]
    

39 Moby Thesaurus words for "puckering":
      abbreviation, astriction, astringency, bottleneck, cervix,
      circumscription, coarctation, compactedness, compaction,
      compression, compressure, concentration, condensation,
      consolidation, constriction, constringency, contraction,
      contracture, curtailment, decrease, diminuendo, hourglass,
      hourglass figure, isthmus, knitting, narrow place, narrowing, neck,
      pursing, reduction, shortening, solidification, stranglement,
      strangulation, striction, stricture, systole, wasp waist,
      wrinkling