doorway
- n the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close
he stuck his head in the doorway
dopa
- n amino acid that is formed in the liver and converted into dopamine in the brain
dopamine
- n a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension