12-Letter Words Matching ___A_____D__

There are 13 12-letter words that match ___A_____D__. 2 are common words, such as INFANTICIDES and STRAIGHTEDGE. A rarer one is UNBARRICADED. 4 words contain a doubled letter.

Full list 13

infanticidesstraightedgemegalocardiatyrannicidaltyrannicidesunmanneredlybreadboardedgalactosidesinfanticidaloctapeptidesparaboloidalparaldehydesunbarricaded

About this list

Words
13 (2 common words)
Common example
infanticides
Rare example
unbarricaded
Doubled letters
4
Ending in S
5

Questions

How many 12-letter words matching ___a_____d__ are there?

13. 2 of them are common words.

What is a common example?

INFANTICIDES is among the common words in this set.