1
diabetic + noun (diabetic patient/coma/diet)
形容词用法，修饰名词，表示与糖尿病相关的。
The diabetic patient needs to monitor her blood sugar levels regularly.
这位糖尿病患者需要定期监测血糖水平。
糖尿病患者
diabetics — plural of diabetic
先理解核心含义，再看它在真实句子里的用法。
糖尿病患者
a person who has diabetes
The diabetic patient needs to monitor her blood sugar levels regularly.
这位糖尿病患者需要定期监测血糖水平。
糖尿病患者,通常指糖尿病患者
A person with diabetes, usually diabetes mellitus.
My grandfather is diabetic and needs to monitor his blood sugar levels carefully.
我的祖父患有糖尿病，需要小心监测他的血糖水平。
The hospital has a special support group for diabetics to share their experiences.
这家医院为糖尿病患者设立了一个特别的支持小组，供他们分享经验。
She was diagnosed as diabetic at a young age and has learned to manage it well.
她年纪轻轻就被诊断出患有糖尿病，并且已经学会了很好地控制病情。
形容词用法，修饰名词，表示与糖尿病相关的。
The diabetic patient needs to monitor her blood sugar levels regularly.
这位糖尿病患者需要定期监测血糖水平。
名词用法，指糖尿病患者。
He is a diabetic and must avoid sugary foods.
他是个糖尿病患者，必须避免含糖食物。
Not this
He is a diabetes patient.
Use this
He is a diabetic patient.
“diabetes”是病名，作定语应使用形容词“diabetic”。
Not this
There are many diabetic in the hospital.
Use this
There are many diabetics in the hospital.
“diabetic”作名词时是可数名词，复数须加-s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
糖尿病患者
The diabetic patient needs to monitor his blood sugar levels regularly.
这位糖尿病患者需要定期监测血糖水平。
糖尿病饮食
She follows a strict diabetic diet to control her condition.
她严格遵守糖尿病饮食来控制病情。
糖尿病并发症
Untreated diabetes can lead to serious diabetic complications.
未经治疗的糖尿病可能导致严重的糖尿病并发症。
1型糖尿病患者
As a type 1 diabetic, he requires daily insulin injections.
作为1型糖尿病患者，他每天需要注射胰岛素。
糖尿病视网膜病变
Diabetic retinopathy is a leading cause of blindness in adults.
糖尿病视网膜病变是成人失明的主要原因之一。
Use diabetics naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
diabetic中有'bet'，提醒糖尿病患者要'赌'在血糖控制上。
语域：mixed 常见场景：medical settings、clinical discussions、everyday conversation 该词既可作名词（指糖尿病患者）也可作形容词（描述与糖尿病相关的事物）。在医疗和临床场合较为正式，日常对话中也比较常见，但需根据词性选择适当语境。
作形容词时常用定语；作名词时指患者，可数。
Dictionary facts from ECDICT, WIKTIONARY.