15-Letter Words Matching _________PH____

There are 26 15-letter words that match _________PH____. 3 are common words, such as BIBLIOGRAPHICAL and LEXICOGRAPHICAL. A rarer one is SUPERPHOSPHATES. In this set, O is the most frequent open letter (24 words). 3 words contain a doubled letter.

Full list 26

Common words

bibliographicallexicographicalradiotelephonesacanthocephalandolichocephalicoceanographicalphysiographicalradiotelephonicrhombencephalonstratigraphicalzoogeographicaladenohypophyses
bibliographicallexicographicalradiotelephonesacanthocephalandolichocephalicoceanographicalphysiographicalradiotelephonicrhombencephalonstratigraphicalzoogeographicaladenohypophysesadenohypophysisallelomorphismsbiogeographicalhematoporphyrinheteromorphismsmegasporophyllsneurohypophysesneurohypophysisnonbiographicalorthophosphatespseudomorphismssporangiophoressuperencipheredsuperphosphates

About this list

Words
26 (3 common words)
Common example
bibliographical
Rare example
superphosphates
Doubled letters
3
Ending in S
12
Most frequent letter
O (24)

Questions

How many 15-letter words matching _________ph____ are there?

26. 3 of them are common words.

What is a common example?

BIBLIOGRAPHICAL is among the common words in this set.