A neurologist is the doctor trained in neurology: the scientific study of the nervous system and its diseases, and the care of people who have them. You might see one for seizures, headaches that will not stop, numbness, or illnesses that change movement or memory.

A neurologist神經內科醫師is the doctor trained in neurology是受過neurology（神經學）訓練的醫師: the scientific study of the nervous system and its diseases也就是研究神經系統和相關疾病的科學and the care of people who have them以及照顧患有這些疾病的人。You你might see one可能會去看這種醫師for seizures因為癲癇發作headaches that will not stop一直不會好的頭痛numbness麻木感or illnesses that change movement or memory或是影響動作或記憶的疾病。

In hospital language they are the specialist for the brain, spinal cord, and nerves who treats with tests and medicine, not with a surgeon's knife — that other doctor is a neurosurgeon.

In hospital language在醫院用語裡they are the specialist for the brain, spinal cord, and nerves他們是專門看腦、脊髓和神經的專科醫師who treats with tests and medicine用檢查和藥物來治療not with a surgeon's knife而不是用手術刀 — that other doctor is a neurosurgeon那種醫師是神經外科醫師。

The sense you were given names the field; this word names the person in that field.

The sense you were given你拿到的這個意思names the field講的是這個學科的名稱this word而這個字names the person in that field講的是這個領域裡的人。

It is a formal medical word. You will hear it at the clinic, not much in casual chat unless someone is telling you which doctor they saw.

It它is a formal medical word是一個正式的醫學用字。You你will hear it at the clinic會在診間聽到not much in casual chat平常聊天比較少用到unless someone is telling you which doctor they saw除非有人在告訴你他們看了哪一科的醫生。