That term was deprecated after the formulation of the Standard Model during the 1970s, in which the large number of particles was explained as combinations of a (relatively) small number of more fundamental particles.
Istilah ini telah ditinggalkan setelah perumusan Model Standar selama tahun 1970-an di mana sejumlah besar partikel itu dijelaskan sebagai kombinasi dari sejumlah partikel fundamental.