| hot nodule | A thyroid nodule with a much higher uptake of radioactive iodine than the surrounding parenchyma; usually benign but sometimes causing hyperthyroidism. (05 Mar 2000) |
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| hot pack | A pack of cloth or other material soaked in hot water, or producing moist heat by another means. (05 Mar 2000) |
| hot salt steriliser | A steriliser for endodontic equipment in which table salt is heated in a container at 218 to 246캜; the dry heat is transmitted to root canal instruments, absorbent points, or cotton pellets for their rapid (5 to 10 seconds) sterilization. (05 Mar 2000) |
| hot-short | <chemistry> More or less brittle when heated; as, hot-short iron. Source: Websters Dictionary (01 Mar 1998) |
| hot spleen | <radiology> Decreased liver uptake, liver disease (e.g., cirrhosis), shunting of portal venous blood, increased splenic uptake, haematopoietic disease, septicaemia, rheumatoid disorders, immunostimulation (tumour, Aldomet, IL-2) see: liver-spleen scan (12 Dec 1998) |
| hot spot | <molecular biology> A particular area of DNA which is especially prone to spontaneous mutations or recombinations. (09 Oct 1997) |
| hot thyroid nodule | <radiology> Almost always hyperfunctioning adenoma, vast majority benign, up to 50% are autonomous see also: thyroid carcinoma, cold thyroid nodule (12 Dec 1998) |