A chronic fibrous reaction in the lungs due to the inhalation of dust particles of vegetable origin. ... Origin: phyto-+ pneumoconiosis ... (05 Mar 2000) ... 
Type: Term Pronunciation: fī′tō-nū′mō-kō′nē-ō′sis Definitions: 1. A chronic fibrous reaction in the lungs due to the inhalation of particles of vegetable origin.