piriformis
English edit
Alternative forms edit
Etymology edit
Unadapted borrowing from New Latin pirifōrmis, ellipsis of mūsculus pirifōrmis (“pear-shaped muscle”). Doublet of piriform.
Pronunciation edit
- (Received Pronunciation) IPA(key): /ˌpɪ.ɹɪˈfɔː.mɪs/
- (General American) IPA(key): /ˌpɪɹ.əˈfɔɹ.mɪs/
Noun edit
piriformis (plural piriformes)
- (anatomy, zootomy) A gluteal muscle which arises from the front of the sacrum and the ischium or sacrotuberous ligament, passes out of the pelvis through the greater sciatic foramen, and inserts into the greater trochanter of the femur, serving in humans to rotate the thigh laterally.
Derived terms edit
Translations edit
muscle that rotates the thigh laterally
References edit
- “pyriformis”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
- “piriformis”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
Latin edit
Alternative forms edit
Etymology edit
From pirum (“a pear”) + -fōrmis (“-form, -shaped”, adjectival suffix).
Pronunciation edit
- (Classical) IPA(key): /pi.riˈfoːr.mis/, [pɪrɪˈfoːrmɪs̠]
- (modern Italianate Ecclesiastical) IPA(key): /pi.riˈfor.mis/, [piriˈfɔrmis]
Adjective edit
pirifōrmis (neuter pirifōrme); third-declension two-termination adjective (New Latin)
Inflection edit
Third-declension two-termination adjective.
Number | Singular | Plural | |||
---|---|---|---|---|---|
Case / Gender | Masc./Fem. | Neuter | Masc./Fem. | Neuter | |
Nominative | pirifōrmis | pirifōrme | pirifōrmēs | pirifōrmia | |
Genitive | pirifōrmis | pirifōrmium | |||
Dative | pirifōrmī | pirifōrmibus | |||
Accusative | pirifōrmem | pirifōrme | pirifōrmēs pirifōrmīs |
pirifōrmia | |
Ablative | pirifōrmī | pirifōrmibus | |||
Vocative | pirifōrmis | pirifōrme | pirifōrmēs | pirifōrmia |
Descendants edit
- → English: pyriform, piriform; piriformis, pyriformis
- → Spanish: piriforme