noun
mammoth tanker
Refers to a very large oil tanker, typically an ultra-large crude carrier (ULCC).
マンモスタンカーが原油を満載して港に入ってきた。
A mammoth tanker fully loaded with crude oil came into the port.
Variant spelling with an interpunct; less common but still seen.
A general tanker; マンモスタンカー specifically emphasizes an exceptionally large size.
Loanword from English 'mammoth tanker'.