sustentaculumn.

Brit.

/ˌsʌstɛnˈtakjᵿləm/, U.S.

/ˌsəstɛnˈtækjələm/

Inflections: Plural sustentacula.

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

Etymology: < post-classical Latin sustentaculum nourishment, food (4th cent. in Augustine), crutch, prop (from 8th cent. in British sources; from 9th cent. in continental sources) < classical Latin sustentāre sustentate v. + -culum -culum suffix. Compare sustentacle n.In plural form sustentacula after the Latin plural form.

Chiefly Zoology and Anatomy.

A supporting part or structure; esp. the sustentaculum tali (see Compounds); Zoology a short spine present on each tarsus of the fourth pair of legs in many orb-weaving spiders (family Araneidae).

ΘΚΠ

the world > life > biology > physical aspects or shapes > specific areas or structures > [noun] > supporting structure

sustentaculum1841

pedunculation1848

sustentacle1853

stem1861

1737 Gentleman's Mag. Apr. 229/1 If it be supported so that the Sustentaculum shall recline..the optick rays will be kept in a parallel position.

1841 J. Blackwall in Trans. Linn. Soc. 18 224 (note) A strong, moveable spine inserted near the termination of the tarsus of each posterior leg, on the under side, in spiders belonging to the genus Epeira, which I propose to denominate sustentaculum.

1867 Proc. Royal Irish Acad. 1864–6 9 459 A composite special muscle to flex the little toe in the foot of a slight female was made up of..a muscular band from the posterior part of the os calcis, below the sustentaculum [etc.].

1882 Cassell's Nat. Hist. VI. 178 In this operation [sc. wrapping prey in silk] many species are aided by peculiar spines (called sustentacula) attached to the last joints of the posterior legs.

1910 S. Sisson Text-bk. Vet. Anat. 168 The fibular tarsal [of the dog] has a long anterior process or ‘beak’, but the inner process (sustentaculum) is short.

1939 Jrnl. Galway Archaeol. & Hist. Soc. 18 131 The calcaneus shows a well-developed sustentaculum in all four skeletons.

1980 Ecology 61 1134/1 These legs have spines like crochet hooks (sustentacula) that aid in throwing the silk.

2006 K. D. Rose Beginning Age Mammals xiv. 285/2 This arrangement, in which the astragalus glides in a sagittal plane on the sustentaculum, facilitates flexion and extension of the tarsal joints.

Compounds

sustentaculum tali n. [after scientific Latin sustentaculum tali (1762 or earlier)] a horizontal medial projection on the calcaneus bone of the ankle which articulates with the talus bone above.

ΚΠ

1841 W. H. Madden & W. Sharpey tr. J. Cruveilhier Descriptive Anat. I. in A. Tweedie Libr. Med. VII. 133 This eminence has been called..the sustentaculum tali, because the anterior and internal articular surface, which supports the astragalus, is on its upper part.

1939 Lancet 7 Jan. 59/1 With the great toe fixed, contraction of this muscle elevates the sustentaculum tali and supports the arch.

2007 S. Eustace et al. Sports Injuries vii. 221/2 The sustentaculum tali may be small and may not be palpable at all but it has anatomical significance in that it supports the talus.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	sustentaculum
释义	sustentaculumn. Brit. /ˌsʌstɛnˈtakjᵿləm/, U.S. /ˌsəstɛnˈtækjələm/ Inflections: Plural sustentacula. Origin: A borrowing from Latin. Etymon: Latin sustentaculum. Etymology: < post-classical Latin sustentaculum nourishment, food (4th cent. in Augustine), crutch, prop (from 8th cent. in British sources; from 9th cent. in continental sources) < classical Latin sustentāre sustentate v. + -culum -culum suffix. Compare sustentacle n.In plural form sustentacula after the Latin plural form. Chiefly Zoology and Anatomy. A supporting part or structure; esp. the sustentaculum tali (see Compounds); Zoology a short spine present on each tarsus of the fourth pair of legs in many orb-weaving spiders (family Araneidae). ΘΚΠ the world > life > biology > physical aspects or shapes > specific areas or structures > [noun] > supporting structure sustentaculum1841 pedunculation1848 sustentacle1853 stem1861 1737 Gentleman's Mag. Apr. 229/1 If it be supported so that the Sustentaculum shall recline..the optick rays will be kept in a parallel position. 1841 J. Blackwall in Trans. Linn. Soc. 18 224 (note) A strong, moveable spine inserted near the termination of the tarsus of each posterior leg, on the under side, in spiders belonging to the genus Epeira, which I propose to denominate sustentaculum. 1867 Proc. Royal Irish Acad. 1864–6 9 459 A composite special muscle to flex the little toe in the foot of a slight female was made up of..a muscular band from the posterior part of the os calcis, below the sustentaculum [etc.]. 1882 Cassell's Nat. Hist. VI. 178 In this operation [sc. wrapping prey in silk] many species are aided by peculiar spines (called sustentacula) attached to the last joints of the posterior legs. 1910 S. Sisson Text-bk. Vet. Anat. 168 The fibular tarsal [of the dog] has a long anterior process or ‘beak’, but the inner process (sustentaculum) is short. 1939 Jrnl. Galway Archaeol. & Hist. Soc. 18 131 The calcaneus shows a well-developed sustentaculum in all four skeletons. 1980 Ecology 61 1134/1 These legs have spines like crochet hooks (sustentacula) that aid in throwing the silk. 2006 K. D. Rose Beginning Age Mammals xiv. 285/2 This arrangement, in which the astragalus glides in a sagittal plane on the sustentaculum, facilitates flexion and extension of the tarsal joints. Compounds sustentaculum tali n. [after scientific Latin sustentaculum tali (1762 or earlier)] a horizontal medial projection on the calcaneus bone of the ankle which articulates with the talus bone above. ΚΠ 1841 W. H. Madden & W. Sharpey tr. J. Cruveilhier Descriptive Anat. I. in A. Tweedie Libr. Med. VII. 133 This eminence has been called..the sustentaculum tali, because the anterior and internal articular surface, which supports the astragalus, is on its upper part. 1939 Lancet 7 Jan. 59/1 With the great toe fixed, contraction of this muscle elevates the sustentaculum tali and supports the arch. 2007 S. Eustace et al. Sports Injuries vii. 221/2 The sustentaculum tali may be small and may not be palpable at all but it has anatomical significance in that it supports the talus. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1737
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