Third-person singular simple present indicative form of collimate.(verb)
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Use "collimates" in a sentence
"The GBT observations confirm that the magnetic field collimates the H2O maser jet, while the OH maser observations show that a strong large scale magnetic field is present in the envelope surrounding the W43A central star."
"A lens doesn't only let in light - in most cases, the more the merrier - it also carefully collimates that light, adjusts for chromatic aberration, and ensures that no geometric image distortions occur at varying zoom lengths."
"The lens closer to the laser collimates the fast axis, while the second lens collimates the slow axis of the laser diode."