The New York Stock Exchange started out as a coffee house.
infrasonic
(adjective) having frequencies below those of audible sound
Source: WordNet® 3.1
infrasonic (comparative more infrasonic, superlative most infrasonic)
(of sound waves, acoustics) Having frequencies below the human audible range
(of a device) Generating or employing such sound waves
• ultrasonic
Source: Wiktionary
8 July 2024
(noun) a line or route along which something travels or moves; “the hurricane demolished houses in its path”; “the track of an animal”; “the course of the river”
The New York Stock Exchange started out as a coffee house.