protuberance russian

• бугоро́к

  hillock, small mound, knoll

  bump, knob, protuberance

  tubercle, nodule, prominence

• вы́рост

  with room to grow, a size too big (to grow into)

  outgrowth, protuberance, growth, excrescence

• вы́пуклость

  salience, protuberance, prominence, embossment

• протубера́нец

  solar prominence, protuberance