Definition of observationally in English:

observationally

adverb

  • See observational

    • ‘Students learned their peers' behaviors observationally.’
    • ‘Any two consecutive cards will be observationally indistinguishable in color.’
    • ‘Behaviours that observationally look very similar have different meanings for different children.’
    • ‘He talked first about what we can expect observationally from Pluto over the next decade.’
    • ‘How could this be tested observationally?’