Definitions

1. verb

to remove the trunk or a trunk-like covering from something (e.g. a tree or a pipe)

“The forester had to untrunk the trees to prevent disease from spreading.”

2. adjective

not having a trunk or a trunk-like covering

“The untrunked pipes were easier to install in the new building.”

3. noun

a pipe or a tube that has been untrunked

“The plumber installed the new untrunked pipe to reduce water pressure.”