infundibulum

/ˌɪnfənˈdɪbjələm/
noun
  1. A funnel-shaped structure or passage, especially in the body (e.g., in the brain or reproductive system).
    • The surgeon carefully examined the infundibulum for any blockages.
    • During the anatomy lesson, the teacher pointed to the infundibulum of the fallopian tube.
    • The infundibulum connects the hypothalamus to the pituitary gland in the brain.