In many respects, the steroids also seem to fall within this class. This enormous generalization induced from structure determination studies led to the hypothesis that all of these molecules are made in the cell by a single route â that they are products of a common biogenetic pathway. In recent years, great progress has been made in mapping this pathway.
Captain definition, a person who is at the head of or in authority over others; chief; leader. See more.
brave, courageous, and bold mean showing no fear. brave is used of a person who has or shows no fear when faced with danger or difficulty. The brave crew tried to save the ship. courageous is used of a person who is always prepared to meet danger or difficulty. The early astronauts were courageous in facing the dangers of space travel.