List of 15-letter words beginning with

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There are 7 fifteen-letter words beginning with PROTO

PROTOCERATOPSES	Sorry, definition not available.
PROTOHISTORIANS	• protohistorians n. Plural of protohistorian. • PROTOHISTORIAN n. one who studies protohistory.
PROTOPORPHYRINS	• protoporphyrins n. Plural of protoporphyrin. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin.
PROTOSPATHAIRES	• PROTOSPATHAIRE n. (historical) the captain of the guards at Byzantium, also PROTOSPATAIRE, PROTOSPATHARIUS.
PROTOSPATHARIUS	• protospatharius n. Alternative form of protospatharios. • PROTOSPATHARIUS n. (historical) the captain of the guards at Byzantium, also PROTOSPATAIRE, PROTOSPATHAIRE.
PROTOZOOLOGICAL	• protozoological adj. Of or pertaining to protozoology. • PROTOZOOLOGICAL adj. related to protozoology.
PROTOZOOLOGISTS	• protozoologists n. Plural of protozoologist. • PROTOZOOLOGIST n. one who studies protozoology.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the 1Word.ws and WikWik.org.

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English Wiktionary: 80 words
Scrabble in French: 8 words
Scrabble in Spanish: 13 words
Scrabble in Italian: 12 words
Scrabble in German: no word
Scrabble in Romanian: 31 words

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