1 Battlestar (fictional spaceship), a type of spaceship in the original and new television series Battlestar Galactica.  Battlestar (reimagining), spaceship in the reimagined Battlestar Galactica.
Smooth muscle is also sometimes known as Involuntary muscle due to our inability to control its movements, or Unstriated as it does not have the stripy appearance of Skeletal muscle. Smooth muscle is found in the walls of hollow organs such as the Stomach, Oesophagus, Bronchi and in the walls of blood vessels.
Noun. 1. smooth muscle-a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart). involuntary muscle.