diagnostic

形容词 diagnostic:

1. concerned with diagnosis; used for furthering diagnosis
2. characteristic or indicative of e.g. a disease
   同义词：symptomatic

1. Strip to the waist and lie down on the diagnostic couch over there.
   把衣服解开到腰间，躺到那诊断床上去。
2. The removal and examination of a sample of tissue from a living body for diagnostic purposes.
   活组织检查因诊断目的而从生命体中取出、消除和观察样品组织
3. Diagnostic imaging in which ultrasound is used to visualize an internal body structure or a developing fetus.
   超声波扫描术利用超声波来显示耳体结构或胚胎发育情况的诊断用的成像法

di.ag.nos.tic

adj.（形容词）
Of, relating to, or used in a diagnosis.
诊断的：诊断的，与诊断有关的，或在诊断中使用的
Serving to identify a particular disease; characteristic.
特征的：鉴别出某种特别的病症；特性的
n.（名词）
Often diagnostics (used with a sing. verb)The art or practice of medical diagnosis.
常作 diagnostics （与单数动词连用）诊断：医学诊断行为或实践
A symptom or a distinguishing feature serving as supporting evidence in a diagnosis.
症状：用于做出诊断的症状或特别的表现
An instrument or a technique used in medical diagnosis.
诊器：用于医学的仪器或技术

来源：
Greek diagnôstikos [able to distinguish]
希腊语 diagnôstikos [可以辨别的]
from diagnôstos [distinguished]
源自 diagnôstos [区别]
from diagignôskein [to distinguish] * see diagnosis
源自 diagignôskein [辨别] *参见 diagnosis

【引伸】
di.agnos.tically
adv.（副词）