有块茎,块茎状,结节
Tuberosity \Tu`ber*os"i*ty\, n.; pl. {Tuberosities}. [Cf. F. tub['e]rosit['e].] 1. The state of being tuberous. 2. An obtuse or knoblike prominence; a protuberance.
tuberosity n : a protuberance on a bone especially for attachment of a muscle or ligament [syn: {tubercle}, {eminence}]