| 释义 |
hyperchromatic, a.|haɪpəkrəʊˈmætɪk|
[f. hyper- 5 + chromatic a. (in sense 2, chromatin + -ic).]
1. Med.
a. Of the skin: excessively pigmented.
1894in Gould Dict. Med. 589/2.
b. = hyperchromic a. 1.
1929R. B. H. Gradwohl tr. Schilling's Blood Picture ii. 113 Single or many large hyperchromatic cells (megalocytes, occasional megaloblasts). 1966[see hyperchromasia 1 b].
2. Cytology. Of a cell or nucleus: having an abnormally large amount of chromatin.
1896E. B. Wilson Cell ii. 68 In many cancer-cells many of the nuclei are especially rich in chromatin (hyperchromatic cells). 1930Med. Jrnl. Austral. 22 Feb. 244/1 Highly differentiated, hyperchromatic sarcoma cells. 1966Wright & Symmers Systemic Path. II. xxxii. 1128/1 Not infrequently the nucleus of the tumour cells varies considerably in size; it may be large and hyperchromatic..or it may appear as a small, irregular, pyknotic structure. |