Definition of droppers:
(n) :
A utensil for dispensing a single drop of liquid at a time.
(n) :
One who drops something, especially one who drops a specific item to cause mischief.
(n) :
(computing) A software component designed to install malware on a target system.
(n) :
A seat post whose height can be adjusted while riding.
(n) :
(tennis, informal) A drop shot.
(n) :
(slang) A person who uses fraudulent cheques.