11-Letter Words Matching S_________A

There are 19 11-letter words that match S_________A. 1 are common words, such as SPERMATOZOA and SANGUINARIA. A rarer one is SUPERSTRATA. In this set, E is the most frequent open letter (13 words). 5 words contain a doubled letter.

Full list 19

spermatozoasanguinariasclerodermascopophiliaselaginellasinfoniettasteatopygiasynesthesiasaltimboccasansevieriascolopendrascyphistomaspanakopitaspanokopitaspermagoniaspermathecasteatorrheasubumbrellasuperstrata

About this list

Words
19 (1 common words)
Common example
spermatozoa
Rare example
superstrata
Doubled letters
5
Ending in S
0
Most frequent letter
E (13)

Questions

How many 11-letter words matching s_________a are there?

19. 1 of them are common words.

What is a common example?

SPERMATOZOA is among the common words in this set.