General:
* Hologram: A three-dimensional image produced by light interference.
* Holotype: The single specimen of an organism that serves as the definitive example for that species.
* Holocaust: A great or complete destruction of life, especially by fire.
* Holistic: Relating to or concerned with complete systems rather than with the analysis of, treatment of, or study of the parts.
* Holozoic: Relating to or denoting organisms (especially animals) that obtain their nourishment by consuming other organisms.
Less Common:
* Holohedral: Relating to or possessing all the faces of a symmetrical crystal.
* Holophytic: Relating to or denoting plants that obtain their nourishment from inorganic materials.
* Holophane: A type of glass used in streetlights.
* Holomorphism: In mathematics, a structure-preserving mapping between two spaces.
* Holosystolic: Relating to the whole systolic period (the phase of the heartbeat when the heart contracts).
Note: While these words all share the root "holos," their meanings can vary significantly.
Let me know if you'd like more examples or information about specific words!