Home › Words › E › ectocraniumectocraniumectocranium means the exterior of the skull.EtymologyFrom ecto- + cranium.nounThe exterior of the skullDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.ectocranial 84% match — external to the cranium vs ectocranium →ectocranially 82% match — externally to the cranium vs ectocranium →paracranium 77% match — The external periosteum that covers the outer surface of the skull vs ectocranium →intracranium 73% match — The interior of the cranium vs ectocranium →endocranium 73% match — The layer between the dura mater and the skull vs ectocranium →endocranial 72% match — within the cranium vs ectocranium →basicranium 70% match — The inferior region of the skull vs ectocranium →extracranial 70% match — Not intracranial, but outside the cranium. vs ectocranium →