esqueleto

noun
  1. The internal framework of bones in a body that supports and shapes it, commonly referred to as a skeleton. noun
    The esqueleto of a human is composed of 206 bones.
    During the biology class, we studied the esqueleto of various animals.
  2. A framework or structure that resembles a skeleton, often used metaphorically to describe the basic or essential structure of something. noun
    The architect presented the esqueleto of the new building before adding details.
    The novel's plot was still in its esqueleto form, lacking detailed character development.