alphabet

Quadruplex

Pronunciation of Quadruplex
/kwˈɒdɹuːplˌɛks/, /kwˈɒdɹuːplˌɛks/, /k_w_ˈɒ_d_ɹ_uː_p_l_ˌɛ_k_s/

Antonyms for quadruplex:

Aside from other material advantages, it is estimated that at least from $ 15, 000, 000 to $ 20, 000, 000 has been saved by the Edison quadruplex merely in the cost of line construction in America. - "Edison, His Life and Inventions", Frank Lewis Dyer and Thomas Commerford Martin.

thereabouts

exactly, particularly, rarely.