cubic /ˈkjuː.bɪk/adjective 3noun 1forms 1 adjective3 •Used in the names of units of volume formed by multiplying a unit of length by itself twice.On one recent day, officials said the fine dust concentration levels in Seoul rose above 130 micrograms per cubic meter. — 2019 •Relating to polynomials of the form ax³+bx²+cx+d. •Having three equal axes and all angles 90°. noun1 •A cubic curve. formscubics
