sesquicentenary/ˌseskwisenʹteenəri, -ʹtenəri/ noun (pl -ies) (pl sesquicentenaries)

• monopsony
• monorail
• monosaccharide
• monoski
• monosodium glutamate
• monostable
• monosyllabic
• monosyllable
• monotheism
• monotint
• monotone
• monotonic
• monotonous
• monotreme
• Monotype
• monotype
• monotypic
• monounsaturated
• monovalent
• monoxide
• monozygotic
• monozygous
• monseigneur
• monsieur
• monsignor