devocalize or devocalise /dē-vōˈkə-līz/ or devoice /dē-voisˈ/

To make voiceless

• biopiracies
• biopiracy
• bioplasm
• bioplasmic
• bioplasms
• bioplast
• bioplasts
• biopoieses
• biopoiesis
• biopolymer
• biopolymers
• bioprospect
• bioprospected
• bioprospecting
• bioprospects
• biopsies
• biopsy
• biopsychological
• biopsychologies
• biopsychology
• biopsychosocial
• bioreactor
• bioreactors
• boarts
• boas