| rot | 1. To undergo a process common to organic substances by which they lose the cohesion of their parts and pass through certain chemical changes, giving off usually in some stages of the process more or less offensive odors; to become decomposed by a natural process; to putrefy; to decay. "Fixed like a plant on his peculiar spot, To draw nutrition, propagate, and rot." (Pope) 2. Figuratively: To perish slowly; to decay; to die; to become corrupt. "Four of the sufferers were left to rot in irons." (Macaulay) "Rot, poor bachelor, in your club." (Thackeray) Synonym: To putrefy, corrupt, decay, spoil. Origin: OE. Rotien, AS. Rotian; akin to D. Rotten, Prov. G. Rotten, OHG. Rozzn, G. Rosten to steep flax, Icel. Rotna to rot, Sw. Ruttna, Dan. Raadne, Icel. Rottin rotten. Cf. Ret, Rotten. 1. Process of rotting; decay; putrefaction. 2. <botany> A disease or decay in fruits, leaves, or wood, supposed to be caused by minute fungi. See Bitter rot, Black rot, etc, below. 3. [Cf. G. Rotz glanders] A fatal distemper which attacks sheep and sometimes other animals. It is due to the presence of a parasitic worm in the liver or gall bladder. See 1st Fluke. "His cattle must of rot and murrain die. <botany>" (Milton) Bitter rot, a disease of grapes, first appearing in whitish pustules on the fruit, caused by the fungus Coniothyrium diplodiella. Source: Websters Dictionary (01 Mar 1998) |
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| rotalite | <paleontology> Any fossil foraminifer of the genus Rotalia, abundant in the chalk formation. Origin: L. Rota wheel. Source: Websters Dictionary (01 Mar 1998) |
| rotamase | <enzyme> Prokaryotic peptidyl prolyl cis trans isomerase, homologue of immunophilins but not inhibited by cyclosporin. Located in the periplasm. (18 Nov 1997) |
| rotameter | A device for measuring the flow of gas or liquid; the fluid flowing up through a slightly tapered tube elevates a ball or other weight that partially obstructs the flow, until the wider cross-section allows that flow to pass around the floating obstruction. Origin: L. Rota, wheel, + G. Metron, measure (05 Mar 2000) |
| rotary joint | A synovial joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, as in the proximal radioulnar joint. Synonym: articulatio trochoidea, helicoid ginglymus, lateral ginglymus, rotary joint, rotatory joint, trochoid articulation, trochoid joint. (05 Mar 2000) |
| rotary subluxation of scaphoid | <radiology> Scaphoid ring sign, Terry Thomas sign (scapho-lunate dissociation) (12 Dec 1998) |
| rotascope | <instrument> Same as Gyroscope. Origin: L. Rota a wheel + -scope. Source: Websters Dictionary (01 Mar 1998) |
| rotate | 1. <anatomy> To turn. 2. <plant biology> Circular and flattened, for example of a corolla with a very short tube and spreading lobes. (17 Dec 1997) |
| rotating anode | In diagnostic radiography, modern X-ray tubes that have a mushroom-shaped anode that rotates rapidly to avoid local heat buildup from electron impact during X-ray generation. (05 Mar 2000) |
| rotating anode tube | A modern X-ray tube, in which heat buildup is distributed through a larger volume by rotating the target. (05 Mar 2000) |
| rotation | <dentistry> A movement in which the tooth turned along the long axis of the tooth. (08 Jan 1998) |
| rotation flap | A pedicle flap that is rotated from the donor site to an adjacent recipient area, usually as a direct flap. (05 Mar 2000) |
| rotation therapy | Teletherapy in which a desirable radiation dose distribution is achieved by rotating the patient or machine about an axis passing through the centre of the tumour. (05 Mar 2000) |
| rotational axis | An imaginary line around which a removable partial denture tends to rotate. Synonym: rotational axis. (05 Mar 2000) |
| rotational nystagmus | Jerky nystagmus arising from stimulation of the labyrinth by rotation of the head around any axis and induced by change of motion. (05 Mar 2000) |
| Barcoo rot | Synonym: desert sore. Origin: Barcoo, a river in S. Australia (05 Mar 2000) |
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| pizzle rot | ulcerative posthitis |
| pod rot | <plant biology> A fungal disease (caused by Monilia roreri) which infects cacao plants, causing lesions on the seed pods. (09 Oct 1997) |
| sheath rot | ulcerative posthitis |
| foot rot | <veterinary> A disease of the feet of cattle and sheep, marked by decay of the hoof and an offensive discharge. It is caused by fusobacterium necrophorum in cattle and bacteroides nodosus in sheep. It is common in wet pastures. (12 Sep 2002) |