VentosePronunciation: /vɒ̃ˈtəʊz/ (also Ventôse /vɑ̃toz/)Definition of Ventose noun the sixth month of the French Republican calendar (1793–1805), originally running from 19 February to 20 March. Origin:French Ventôse, from Latin ventosus 'windy', from ventus 'wind'Ventose in other Oxford dictionaries Definition of Ventose in the US English dictionary