noun, noun which may take the genitive case particle 'no'
large engine displacement
Refers to engines with a large cylinder capacity, often used in automotive contexts to describe powerful vehicles or to contrast with smaller, more fuel-efficient engines.
Cars with large engine displacement have powerful acceleration.
Large-displacement engines are decreasing due to environmental regulations.
排気量 means 'engine displacement' in general, while 大排気量 specifically means 'large displacement'.
小排気量 is the opposite, meaning 'small engine displacement', often associated with fuel efficiency.
Compound of 大 (large) + 排気量 (engine displacement). The term is straightforward and modern, with no obscure historical derivation.