Concerning stars, dinosaurs would see, upon longer viewing, stars as objects with distinct "sticks" of light too, due to Fraunhofer diffraction (a light-source appears as distinct "sticks" of light when its distance from the lens (eye, telescope lens...) is near infinitely greater than the lens' width). The human depiction of stars, the simplified depiction of a light source undergoing Fraunhofer diffraction, would be familiar to a dinosaur. However, whether dinosaurs would have a word for the small celestial sources of light is an open question.
Both "see with your heart" and "star" were used since other descriptions would be too technical or too mundane and would not fit the movie.