13-Letter Words Matching _________C_T_

There are 24 13-letter words that match _________C_T_. 4 are common words, such as EGOCENTRICITY and EXCOMMUNICATE. A rarer one is STREPTOMYCETE. In this set, I is the most frequent open letter (22 words). 2 words contain a doubled letter.

Full list 24

egocentricityexcommunicateprognosticatequadruplicateachromaticityallergenicitybasidiomyceteconcentricitypathogenicityquintuplicatescholasticatespheroidicitysynchronicitydisintoxicateexothermicityhypertonicityhypervelocitymegakaryocyteneurotoxicityphototoxicityphytotoxicityquadruplicitysaprogenicitystreptomycete

About this list

Words
24 (4 common words)
Common example
egocentricity
Rare example
streptomycete
Doubled letters
2
Ending in S
0
Most frequent letter
I (22)

Questions

How many 13-letter words matching _________c_t_ are there?

24. 4 of them are common words.

What is a common example?

EGOCENTRICITY is among the common words in this set.