IPA: /həˈluːkəl/
KK: /hælˈjuːkəl/
Relating to the big toe.
The doctor examined the hallucal area for any signs of injury.
Hallucal is derived from "hallucis" (from Latin, meaning of the mind or imagination) and the suffix "-al" (meaning pertaining to). The word "hallucal" refers to something that pertains to or is related to hallucinations or the mind's imaginative processes.
Think of 'hallucis' relating to the mind or imagination, and remember that 'hallucal' pertains to those imaginative experiences.