The Collaborative International Dictionary of English v.0.48:

Tuberosity \Tu`ber*os"i*ty\, n.; pl. Tuberosities. [Cf. F.
   tub['e]rosit['e].]
   1. The state of being tuberous.
      [1913 Webster]

   2. An obtuse or knoblike prominence; a protuberance.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tuberosity
    n 1: a protuberance on a bone especially for attachment of a
         muscle or ligament [syn: tuberosity, tubercle,
         eminence]

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "tuberosity":
   bas-relief, bellying, boldness, bulging, camber, convexedness,
   convexity, convexness, embossment, eminence, excrescence,
   excrescency, excurvation, excurvature, extrusion, gibbosity,
   gibbousness, high relief, low relief, projection, prominence,
   protrusion, protuberance, protuberancy, relief, salience, salient,
   tuberousness