1. 
   Opercula
   O·per'cu·la noun plural See Operculum .
   Found op http://www.encyclo.co.uk/webster/O/23
   
   
2. 
   Opercula
   • (n. pl.) See Operculum. • (pl. ) of Operculum
   Found op http://thinkexist.com/dictionary/meaning/opercula/
   
   
3. 
   opercula
   1) Botanical lids
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/opercula/1
   
   

Tip: double click on a word to show its meaning.