Throbbing or beating rhythmically, like a heartbeat or a blinking light.
From Latin 'pulsatus,' past participle of 'pulsare' (to push or strike), which gave rise to 'pulse.' The '-ing' suffix makes it a present participle describing continuous throbbing motion.
Your heart, stars, and even speaker cones all pulsate—it's nature's way of distributing energy rhythmically, which is why this word appears across biology, physics, and music.
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