plumb bob
1 ENTRIES FOUND:
plumb bob
noun
plural
plumb bobs
plumb bob
noun
plural
plumb bobs
Britannica Dictionary definition of PLUMB BOB
[count]
US
1
:
a usually small, heavy object that is used to make a string or rope hang straight
:
the heavy object that is part of a plumb line
— called also
bob
2
