第三人称复数：opercula
名词鳃盖，盖
1. 鳃盖：硬骨鱼类的鳃裂,在外侧另有鳃盖(operculum)保护,鳃隔已退化,咽部每侧留下明显的四个全鳃. 丝状或片状的鳃瓣直接或间接地着生在鱼的5个鳃弓上. 软骨鱼类的鳃瓣是由上皮折叠形成栅板状附着鱼类的心脏位于最后一对鳃弓的后面腹侧,
2. 盖：在视网膜裂孔的周围近处,可以看到被揪下的视网膜小盖(operculum)正附着在玻璃体索条上(图7-77). 近年来前房角镜检查法(gonioscopy)在眼科临床上应用已很普遍,对青光眼、眼外伤以及其它眼前部疾病的诊断和治疗都有重要作用,
3. 厣：因为这种罗马蜗 牛具有一片厚的石灰质厣(operculum),我把厣除去,等到新的膜形成以后,我再把它 浸入海水里十四天,它还是复活了,并且爬走了. 奥甲必登男爵(Baron Aucapitaine) 以后做过相似的试验:他把属于十个物种的100个陆栖贝,
1. danci.911chaxun.com
1. They also have a flap of skin called an operculum, which covers their gill arches.
noun
1. a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted