mastoides

Latin

Etymology

Borrowed from Ancient Greek μᾰστοειδής (mastoeidḗs, “like a breast”), from μᾰστός (mastós, “a woman's breast”) +‎ -ειδής (-eidḗs, “-like, -oid”).

Pronunciation

• (modern Italianate Ecclesiastical) IPA^(key): /mas.toˈi.des/, [mäst̪oˈiːd̪es]

Adjective

mastoīdēs (neuter mastoīdes or mastoīdēs); third-declension one-termination adjective (Greek-type) (New Latin)

1. Shaped like a breast.

Inflection

Third-declension one-termination adjective (Greek-type).

	singular			plural
	masc./fem.	neuter		masc./fem.	neuter
nominative	mastoīdēs	mastoīdes1 mastoīdēs		mastoīdēs	mastoīda mastoīdia2
genitive	mastoīdis			mastoīdum mastoīdium2
dative	mastoīdī			mastoīdibus
accusative	mastoīdem	mastoīdes1 mastoīdēs		mastoīdēs	mastoīda mastoīdia2
ablative	mastoīde mastoīdī2			mastoīdibus
vocative	mastoīdes1 mastoīdēs			mastoīdēs	mastoīda mastoīdia2

¹It is unknown if Classical Latin preserved (or would have preserved) the shortness of the original Greek short ending.
²It is unknown whether adjectives of this type would use i-stem or consonant-stem endings in Classical Latin: the relevant forms are not attested. Depending on the word, either ending or both may be attested in New Latin.

Derived terms

• sternocleidomastoīdēs
• sternocleidomastoīdeus

Descendants

• → English: mastoid
• → Spanish: mastoides

Spanish

Pronunciation

• IPA^(key): /masˈtoides/ [masˈt̪oi̯.ð̞es]
• Rhymes: -oides
• Syllabification: mas‧toi‧des

Adjective

mastoides (invariable)

1. (anatomy) mastoid

   Synonym: mastoideo

Derived terms

• apófisis mastoides

 

Noun

mastoides m (plural mastoides)

1. (anatomy) mastoid; mastoid process

Related terms

• mastoideo

 

Further reading

• “mastoides”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10