What is the biological term that describes the presence of a definite head containing sensory organs that face in the direction that the animals moves in?

The biological term that describes the presence of a definite head containing sensory organs oriented in the direction of movement is "cephalization." This evolutionary trend is characterized by the concentration of nervous tissue and sensory organs at one end of the organism, typically leading to enhanced awareness and interaction with the environment. Cephalization is most commonly seen in bilateral animals, where it facilitates more efficient locomotion and predation.