名词匾，饰板; 胸章，徽章; [医]血小板

1. 斑块：伴有发痒皮疹消退快(一般不跨越24h)消退后不留陈迹儒医以为风团多为风邪或贫血而至;抓后起红色风团或条状隆起者多属血热⒊ 斑块(plaque) 为较大的或大都丘疹融合而成的扁平隆起性侵害,

2. 斑：此一化学家用「NO」代表的分子,是身体特别为了维护动静脉的畅通所制造,避免让引起中风的动脉硬化斑 (plaque) 滞留血管中,并可松弛动脉来维持正常血压,藉此调节血液流速并预防「冠状动脉心脏病 (coronaries)」.

3. 蚀斑：若标本经过适当稀释进行接种并辅以染色处理,病毒可在培养的细胞单层上形成肉眼 可见的局部病损区域,即蚀斑(plaque)或称空斑 即蚀斑( 即蚀斑 plaque)或称空斑.

1. 匾额；饰板
A plaque is a flat piece of metal or stone with writing on it which is fixed to a wall or other structure to remind people of an important person or event.

e.g. After touring the hospital, Her Majesty unveiled a commemorative plaque.
女王陛下巡视完这家医院后，为纪念匾揭了幕。

2. 牙斑；齿菌斑
Plaque is a substance containing bacteria that forms on the surface of your teeth.

e.g. Deposits of plaque build up between the tooth and the gum.
牙齿和牙龈之间会滋生牙斑。

noun

1. a memorial made of brass

Synonym: brassmemorial tablet

2. (pathology) a small abnormal patch on or inside the body