<page_title> Longest word in Spanish </page_title> <section_title> Long words </section_title> <table> <cell> esternocleidooccipitomastoideo <col_header> Word </col_header> <col_header> hipopotomonstrosesquipedaliofobia </col_header> </cell> <cell> noun <col_header> Part of speech </col_header> <row_header> esternocleidooccipitomastoideo </row_header> </cell> <cell> sternocleidomastoid <col_header> Translation </col_header> <row_header> esternocleidooccipitomastoideo </row_header> </cell> </table>
Esternocleidooccipitomastoideos (31-letters) is the plural of the noun esternocleidooccipitomastoideo, which is the sternocleidomastoid.