olemus
Wiktionary, adj:
1. smooth, even, aligned; not sticking out

näiteid
süvislüliti -- flush switch
https://duckduckgo.com/?q=%22flush+switch%22&t=h_&iar=images&iax=images&ia=images
süvispesa -- flush socket
https://duckduckgo.com/?q=%22flush+socket%22&t=h_&iar=images&iax=images&ia=images
süvisnupp -- flush button
https://duckduckgo.com/?q=%22flush+button%22&t=h_&iax=images&ia=images