| 释义 |
tuberous, a.|ˈtjuːbərəs|
[ad. F. tubéreux, -euse (Paré, c 1550), ad. L. tūberōsus, f. tūber, tuber2: see -ous.]
1. Anat., Zool., etc. Of the form of, or constituting, a tuber or rounded projection; covered with such projections; knobbed, knobby. Now rare.
1650Bulwer Anthropomet. iii. 63 This forehead is..neither globous nor tuberous as the forehead of women. 1678Ray Willughby's Ornith. ii. xv. §2. 182 A broad circle of naked, tuberous, white flesh compasses the Eyes, as in the Carriers. 1804Shaw Gen. Zool. V. 208 Tuberous Carp... Carp with thirteen rays in the anal fin, and slightly tuberous body.
2. Path. Affected with tubers or morbid swellings; of the nature of such a swelling; characterized, as a disease, by such swellings; tuberous sclerosis, a rare, hereditary, usu. fatal disease in which there are hard swellings on the brain and elsewhere, with symptoms including mental deficiency and epilepsy.
1656Blount Glossogr., Tuberous, full of bunches, swellings, wennes or knots. 1762R. Guy Pract. Obs. Cancers 150 The tuberous Vessels were rather fuller than ordinary. 1834Cooper Goods' Study Med. (ed. 4) I. 353 The origin of vascular tuberous growths. 1898C. K. Mills Nervous Syst. & its Dis. v. 503 Tuberous Sclerosis. An interesting form of sclerotic pseudotumor is sometimes found in the brain, especially among the idiotic..and epileptic. 1900J. Hutchinson in Arch. Surg. XI. 73 His face was covered with tuberous acne. 1954S. Duke-Elder Parsons' Dis. Eye (ed. 12) xviii. 313 Tuberous Sclerosis (Bourneville's Disease), occurring in young individuals, is associated with nodular lesions in the central nervous system and the skin, particularly on the face (adenoma sebaceum). 1975Swaiman & Wright Practice of Pediatric Neurol. II. xxxii. 739/1 Tuberous sclerosis is best identified by cutaneous signs associated with neurologic deterioration and myoclonic seizures.
3. Bot.
a. Of the nature of a tuber; chiefly in tuberous root, (a) a tuber, or an underground stem bearing tubers (see tuber2 1); (b) more strictly, a true root (usually one of a cluster) thickened so as to resemble a tuber, but bearing no buds; as in the lesser celandine and the dahlia.
1668Tuberous roots [see tuber2 1]. 1730Martyn in Phil. Trans. XXXVI. 385 Their Roots are either bulbous, tuberous, or consisting of thick, fleshy Fibres. 1776Withering Brit. Plants (1796) IV. 346 Peziza tuberosa... Stem growing at the base to a blackish fungous tuberous substance. 1807J. E. Smith Phys. Bot. 140 The knobs of genuine tuberous roots, like the potatoe, are studded with them [buds]. 1872Oliver Elem. Bot. i. vii. 66 When the branches or fibres of a root become thickened in this way, as..in the Garden Dahlia, the root is said to be tuberous.
b. Of a plant: Producing or bearing tubers; tuberous-rooted.
1664Evelyn Kal. Hort. Sept. (1729) 218 Tuberous Indian Jacinth. 1786Abercrombie Gard. Assist. 51 Bulbous and tuberous irises. 1861Miss Pratt Flower. Pl. IV. 55 Tuberous Comfrey. Ibid. VI. 56 Tuberous Fox-tail.
4. Comb. tuberous-rooted a., having a tuberous root (in either sense: see 3 a).
1721Mortimer Husb. II. 226 Irises are both bulbous and tuberous Rooted. 1808Knight in Phil. Trans. XCIX. 174 Such tuberous rooted plants as the potatoe. 1914Daily Mail 31 Jan. 9/2 The planting of tuberous-rooted anemones and ranunculuses.
Hence ˈtuberously adv.; ˈtuberousness.
1681Grew Musæum iii. i. i. 255 The tuberousness of the Bone in some places. 1847–9Todd's Cycl. Anat. IV. 133/2 This disease produces..irregular tuberousness of the hand. a1891Bull. of Ill. State Laboratory II. 28 (Cent. D.) Tuberously. |