someone who does surgery on the nervous system (especially the brain)

Argumentative is an evidentiary objection raised in response to a question which prompts a witness to draw inferences from facts of the case. An argumentative objection is raised as badgering the witness.
Often, argumentative questions do not seek to establish additional facts or check the reliability of existing facts. Instead, they are meant only to cause a witness to argue with the examiner.
An argumentative objection is often stated as Objection, your Honor, argumentative.
adjective
⁕fond of or given to argument and dispute; disputatious; contentious: The law students were an unusually argumentative group.
⁕of or characterized by argument; controversial: an argumentative attitude toward political issues.
⁕Law. arguing or containing arguments suggesting that a certain fact tends toward a certain conclusion.

small finback of coastal waters of Atlantic and Pacific

electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear

In transportation, a layover, also known as lays over or stopover, is some form of a break between parts of a single trip.

An account or record of a journey.

an experiment, or something from which a conclusion may be drawn

oxide of zinc; a white powder used as a pigment or in cosmetics or glass or inks and in zinc ointment

that which is redundant or in excess; anything superfluous or superabundant