Definition of drill string in English:

drill string

Line breaks: drill string

Entry from British & World English dictionary

noun

A structure consisting of coupled lengths of pipe or casing, which occupies the hole made in drilling for oil or gas.

Definition of drill string in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day dissonant
Pronunciation: ˈdɪs(ə)nənt
adjective
lacking harmony