noun🔗Share走光性、光の源に向かうか、または離れるように動く生物の運動The movement of an organism either towards or away from a source of light"The algae exhibited positive phototaxis and moved towards the sunlight streaming through the window. "藻類は正の走光性を示し、窓から差し込む日光に向かって移動した。biologyorganismphysiologyecologynaturedirectionChat with AIVocabulary GamePractice Reading