pyriformadj.

Brit.

/ˈpɪrᵻfɔːm/,

/ˈpʌɪrᵻfɔːm/, U.S.

/ˈpɪrəˌfɔrm/,

/ˈpaɪrəˌfɔrm/

Forms: 1700s– pyriform, 1800s– piriform.

Origin: A borrowing from Latin. Etymon: Latin pyriformis.

Etymology: < post-classical Latin pyriformis, designating the pyriform muscle (1615 or earlier), pear-shaped (mid 17th cent. with reference to the shape of a medical instrument, in the passage translated in quot. 1717 at sense 1) < pyrum , variant of classical Latin pirum pear (see pear n.) + -i- -i- connective + -formis -form comb. form²; compare -iform comb. form. Compare French piriforme , designating the pyriform muscle (1687). With sense 3 compare scientific Latin lobus pyriformis (B. von Gudden 1870, or earlier). Compare earlier pyriformis n.

1. Pear-shaped.

ΘΚΠ

the world > space > shape > curvature > curved three-dimensional shape or body > [adjective] > conical > obconic or pear-shaped

turbinated1615

turbinate1661

pyriform1717

pear-shaped1731

top-shaped1776

obconical1799

obconic1819

pear drop1865

pyriformed1874

1717 H. Banyer tr. J. van Horne Micro-techne 45 Those globous or pyriform [L. pyriformibus] Pessaries that are describ'd by Hildanus, being made of box-wood.

1742 Philos. Trans. 1739–40 (Royal Soc.) 41 287 The pellucid pyriform Body lying in the middle of the Head.

1833 Lancet 2 Nov. 207/2 One of its piriform extremities.

1880 Boston Soc. Nat. Hist. Mem. 10 In the milkweed butterfly the colon is somewhat pyriform in the female.

1928 V. G. Childe Most Anc. East v. 117 The piriform mace has a very long history in Babylonia.

1957 Times 28 Sept. 9/6 This design removed any trace of the early squatness of the pyriform specimens and saw the beginning of the caster's ‘age of elegance’.

1997 Ottawa Citizen (Nexis) 9 Aug. l5 A seabird nesting on a bare rock lays a pyriform egg (very pointed) so it won't roll off into the sea if disturbed.

2. Anatomy. Designating a recess of the pharynx located on each side of the laryngeal opening; of or relating to this structure. Chiefly in pyriform fossa, pyriform sinus.

ΚΠ

1864 H. Green Pract. Treat. Pulmonary Tuberculosis III. ii. 240 The numerous large follicles which occupy the subtonsilar fossæ, or pyriform sinuses at the sides and roots of the tongue, being situated directly under the tonsillary glands, are quite sure to be affected by the diseased secretion that may exude from these bodies.

1888 Lancet 31 Mar. 628/1 From the lingual tonsil the unabsorbed portions trickle into the glosso-epiglottic fossæ, and thence into the pyriform sinuses, or hyoid fossæ, along the lateral grooves of the epiglottis.

1955 R. Macintosh & M. Ostlere Local Analgesia Head & Neck xii. 109 A swab..is inserted in turn into each pyriform fossa by sliding it well over the back of the tongue, close to the lateral pharyngeal wall.

1995 Laryngoscope 105 397 Pyriform tumors were subdivided into three groups.

3. Anatomy and Zoology. Designating the olfactory area of the cerebral hemisphere, esp. of a mammal; of or relating to this area. Chiefly in pyriform lobe.

ΚΠ

1886 D. Ferrier Functions of Brain 49 In these this portion of the hemisphere forms a distinct lobe or protuberance, the natiform protuberance (Owen), or pyriform lobe (Gudden), or hippocampal lobule.

1907 Arch. Neurol. 3 52 The term neopallium is employed..to indicate the variable area intercalated between the ‘basal pallium’ or pyriform lobe and the marginal pallium, or hippocampus.

1948 A. Brodal Neurol. Anat. x. 324 (caption) In amphibians..a dorsal area is found between the hippocampal area (archi-pallium) and the piriform area (palæo-pallium).

1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) xvi. 592 The olfactory lobes, which include the paleopallium, come to constitute only a small ventral hemisphere region, the pyriform lobe.

1998 Behavioral Neurosci. 112 39 An impairment comparable to the pyriform lesion was observed for a lesion of the intralaminar nuclei.

Compounds

C1. Chiefly Botany. Prefixed to adjectives designating a form intermediate between the pyriform shape and some other, as pyriform-bulbous, pyriform-conical, pyriform-ovoid, pyriform-triangular adjs.

ΚΠ

1821 W. P. C. Barton Flora N. Amer. (new ed.) I. 117 Root pyriform-bulbous.

1894 Proc. Amer. Philos. Soc. 32 287 In shape they are pyriform conical, or digitiform, being slightly contracted at the base.

1921 U. P. Hedrick Pears of N.Y. 276 Bergamotte Rouge de Mayer... Fruit medium, sometimes pyriform-ovoid, and sometimes turbinate-ovoid.

1960 Micropaleontology 6 171/2 Carapace pyriform-triangular, highest in front of the middle behind the anterior cardinal angle.

C2.

pyriform aperture n. Anatomy the nasal aperture of the skull.

ΚΠ

1883 C. Heitzmann Microsc. Morphol. Animal Body 710 Behind the pyriform aperture the stratified epithelium is changed into columnar, ciliated epithelium.

1973 Nature 3 Aug. 314/2 A small snout with a small piriform aperture projected from a broad and very flat face.

1994 Acta Anat. 149 141 Survival of infants born with bilateral choanal atresia or pyriform aperture stenosis who breathe orally..challenge the virtually axiomatic theory of ‘obligatory’ nose breathing of the neonate.

pyriform muscle n. Anatomy a pear-shaped muscle; spec. = pyriformis n.

ΚΠ

1615 H. Crooke Μικροκοσμογραϕια x. xxxviii. 809 The fourth extender called Iliacus externus pyriformis, the outward hanch peare muscle..because it filleth the outward and lower cauity of the hanch bone with his oblique position, and is like a round peare.]

1733 G. Douglas tr. J. B. Winslow Anat. Expos. Struct. Human Body I. 67 This [sc. the tibialis gracilis] is a small Pyriform Muscle.

1753 D. Ingram tr. C. Verdier Abstr. Anat. Human Body 265 This Nerve comes out of the Pelvis thro' the ischiadic groove, passes under the pyriform Muscle, and sends branches to it as well as to the Glutei Muscles.

1841 F. H. Ramsbotham Princ. & Pract. Obstetr. Med. 9 The sciatic and pudic nerves, and the pyriform muscle.

1984 Amer. Jrnl. Roentgenol. 143 165 The piriform muscle..is a recognizable landmark that is extremely helpful in locating the sacral plexus and sciatic nerve on CT.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	pyriform
释义	pyriformadj. Brit. /ˈpɪrᵻfɔːm/, /ˈpʌɪrᵻfɔːm/, U.S. /ˈpɪrəˌfɔrm/, /ˈpaɪrəˌfɔrm/ Forms: 1700s– pyriform, 1800s– piriform. Origin: A borrowing from Latin. Etymon: Latin pyriformis. Etymology: < post-classical Latin pyriformis, designating the pyriform muscle (1615 or earlier), pear-shaped (mid 17th cent. with reference to the shape of a medical instrument, in the passage translated in quot. 1717 at sense 1) < pyrum , variant of classical Latin pirum pear (see pear n.) + -i- -i- connective + -formis -form comb. form²; compare -iform comb. form. Compare French piriforme , designating the pyriform muscle (1687). With sense 3 compare scientific Latin lobus pyriformis (B. von Gudden 1870, or earlier). Compare earlier pyriformis n. 1. Pear-shaped. ΘΚΠ the world > space > shape > curvature > curved three-dimensional shape or body > [adjective] > conical > obconic or pear-shaped turbinated1615 turbinate1661 pyriform1717 pear-shaped1731 top-shaped1776 obconical1799 obconic1819 pear drop1865 pyriformed1874 1717 H. Banyer tr. J. van Horne Micro-techne 45 Those globous or pyriform [L. pyriformibus] Pessaries that are describ'd by Hildanus, being made of box-wood. 1742 Philos. Trans. 1739–40 (Royal Soc.) 41 287 The pellucid pyriform Body lying in the middle of the Head. 1833 Lancet 2 Nov. 207/2 One of its piriform extremities. 1880 Boston Soc. Nat. Hist. Mem. 10 In the milkweed butterfly the colon is somewhat pyriform in the female. 1928 V. G. Childe Most Anc. East v. 117 The piriform mace has a very long history in Babylonia. 1957 Times 28 Sept. 9/6 This design removed any trace of the early squatness of the pyriform specimens and saw the beginning of the caster's ‘age of elegance’. 1997 Ottawa Citizen (Nexis) 9 Aug. l5 A seabird nesting on a bare rock lays a pyriform egg (very pointed) so it won't roll off into the sea if disturbed. 2. Anatomy. Designating a recess of the pharynx located on each side of the laryngeal opening; of or relating to this structure. Chiefly in pyriform fossa, pyriform sinus. ΚΠ 1864 H. Green Pract. Treat. Pulmonary Tuberculosis III. ii. 240 The numerous large follicles which occupy the subtonsilar fossæ, or pyriform sinuses at the sides and roots of the tongue, being situated directly under the tonsillary glands, are quite sure to be affected by the diseased secretion that may exude from these bodies. 1888 Lancet 31 Mar. 628/1 From the lingual tonsil the unabsorbed portions trickle into the glosso-epiglottic fossæ, and thence into the pyriform sinuses, or hyoid fossæ, along the lateral grooves of the epiglottis. 1955 R. Macintosh & M. Ostlere Local Analgesia Head & Neck xii. 109 A swab..is inserted in turn into each pyriform fossa by sliding it well over the back of the tongue, close to the lateral pharyngeal wall. 1995 Laryngoscope 105 397 Pyriform tumors were subdivided into three groups. 3. Anatomy and Zoology. Designating the olfactory area of the cerebral hemisphere, esp. of a mammal; of or relating to this area. Chiefly in pyriform lobe. ΚΠ 1886 D. Ferrier Functions of Brain 49 In these this portion of the hemisphere forms a distinct lobe or protuberance, the natiform protuberance (Owen), or pyriform lobe (Gudden), or hippocampal lobule. 1907 Arch. Neurol. 3 52 The term neopallium is employed..to indicate the variable area intercalated between the ‘basal pallium’ or pyriform lobe and the marginal pallium, or hippocampus. 1948 A. Brodal Neurol. Anat. x. 324 (caption) In amphibians..a dorsal area is found between the hippocampal area (archi-pallium) and the piriform area (palæo-pallium). 1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) xvi. 592 The olfactory lobes, which include the paleopallium, come to constitute only a small ventral hemisphere region, the pyriform lobe. 1998 Behavioral Neurosci. 112 39 An impairment comparable to the pyriform lesion was observed for a lesion of the intralaminar nuclei. Compounds C1. Chiefly Botany. Prefixed to adjectives designating a form intermediate between the pyriform shape and some other, as pyriform-bulbous, pyriform-conical, pyriform-ovoid, pyriform-triangular adjs. ΚΠ 1821 W. P. C. Barton Flora N. Amer. (new ed.) I. 117 Root pyriform-bulbous. 1894 Proc. Amer. Philos. Soc. 32 287 In shape they are pyriform conical, or digitiform, being slightly contracted at the base. 1921 U. P. Hedrick Pears of N.Y. 276 Bergamotte Rouge de Mayer... Fruit medium, sometimes pyriform-ovoid, and sometimes turbinate-ovoid. 1960 Micropaleontology 6 171/2 Carapace pyriform-triangular, highest in front of the middle behind the anterior cardinal angle. C2. pyriform aperture n. Anatomy the nasal aperture of the skull. ΚΠ 1883 C. Heitzmann Microsc. Morphol. Animal Body 710 Behind the pyriform aperture the stratified epithelium is changed into columnar, ciliated epithelium. 1973 Nature 3 Aug. 314/2 A small snout with a small piriform aperture projected from a broad and very flat face. 1994 Acta Anat. 149 141 Survival of infants born with bilateral choanal atresia or pyriform aperture stenosis who breathe orally..challenge the virtually axiomatic theory of ‘obligatory’ nose breathing of the neonate. pyriform muscle n. Anatomy a pear-shaped muscle; spec. = pyriformis n. ΚΠ 1615 H. Crooke Μικροκοσμογραϕια x. xxxviii. 809 The fourth extender called Iliacus externus pyriformis, the outward hanch peare muscle..because it filleth the outward and lower cauity of the hanch bone with his oblique position, and is like a round peare.] 1733 G. Douglas tr. J. B. Winslow Anat. Expos. Struct. Human Body I. 67 This [sc. the tibialis gracilis] is a small Pyriform Muscle. 1753 D. Ingram tr. C. Verdier Abstr. Anat. Human Body 265 This Nerve comes out of the Pelvis thro' the ischiadic groove, passes under the pyriform Muscle, and sends branches to it as well as to the Glutei Muscles. 1841 F. H. Ramsbotham Princ. & Pract. Obstetr. Med. 9 The sciatic and pudic nerves, and the pyriform muscle. 1984 Amer. Jrnl. Roentgenol. 143 165 The piriform muscle..is a recognizable landmark that is extremely helpful in locating the sacral plexus and sciatic nerve on CT. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < adj.1717
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