Definitions

1. noun

a long braid of hair, typically hanging down from the back of the head or neck

“She had two pigtails tied up with small ribbons.”

2. verb

to tie or arrange something, especially hair, in a pigtail

“She pigtailed her hair for the school dance.”

3. noun

a long, curved piece of metal or wood used to convey water from a river or lake to a mill or other point

“The old mill’s water was supplied by a pigtail that diverted water from the river.”