12-Letter Words Matching ______D_A___

There are 18 12-letter words that match ______D_A___. 10 are common words, such as BIOFEEDBACKS and DIAMONDBACKS. A rarer one is UNIRRADIATED. In this set, I is the most frequent open letter (13 words). 8 words contain a doubled letter.

Full list 18

biofeedbacksdiamondbacksindividuallyindividuatedindividuatesirremediableirremediablyprimordiallypsychodramasrebroadcaststrombidiasishemihydratedhemihydrateshexahydratesmonopodiallynongraduatesoctahedrallyunirradiated

About this list

Words
18 (10 common words)
Common example
biofeedbacks
Rare example
unirradiated
Doubled letters
8
Ending in S
9
Most frequent letter
I (13)

Questions

How many 12-letter words matching ______d_a___ are there?

18. 10 of them are common words.

What is a common example?

BIOFEEDBACKS is among the common words in this set.