a tailor's pattern, adjustable for different sizes
delineator in American English
(dɪˈlɪniˌeitər)
noun
1.
a person or thing that delineates
2.
a tailor's pattern that can be adjusted for cutting garments of different sizes
Word origin
[1765–75; delineate + -or2]This word is first recorded in the period 1765–75. Other words that entered Englishat around the same time include: bonus, copperhead, lightweight, pile driver, statement