15-Letter Words Ending in CS

There are 21 15-letter words that end in CS. 2 are common words, such as CHARACTERISTICS and HALLUCINOGENICS. A rarer one is SUBMETACENTRICS. In this set, I is the most frequent open letter (21 words). 4 words contain a doubled letter.

Full list 21

characteristicshallucinogenicselectrodynamicsantisyphiliticsbioastronauticsdermatoglyphicselectrokineticselectrotechnicselectrothermicsmetalinguisticsmetamathematicsmorphophonemicspsychoneuroticsantiallergenicsantiarrhythmicsantihistaminicsoptoelectronicsorganometallicsparalinguisticspsychoacousticssubmetacentrics

About this list

Words
21 (2 common words)
Common example
characteristics
Rare example
submetacentrics
Doubled letters
4
Ending in S
21
Most frequent letter
I (21)

Questions

How many 15-letter words ending in cs are there?

21. 2 of them are common words.

What is a common example?

CHARACTERISTICS is among the common words in this set.