結核|けっかくkekkaku[0]heiban (flat)

1. noun, medicinetuberculosis; TB
   何なん年ねんか前まえには、結核けっかくにかかっていると知しらされることは死しの宣告せんこくを聞きくのに等ひとしかった。↗

   Some years ago, learning that one had tuberculosis amounted to hearing a sentence of death.
2. noun, geologyconcretion

• Synonym肺結核はいけっかくWrittenRefers only to tuberculosis of the lungs, the most common form of 「結核」; use it when the infection is specifically pulmonary.
• Synonym結核症けっかくしょうWrittenA formal medical term for tuberculosis, used mainly in disease names and on medical certificates; not the word for everyday talk.
• RelatedＴＢテー・ベーCasualAn old name for tuberculosis, from a German abbreviation and read 「テーベー」; it has an old-fashioned ring, and everyday speech just says 「結核」.

Say 「結核」 for the disease in everyday contexts, as in 「結核にかかる」 or 「結核予防」. Use 「肺結核」 for lung infections, 「結核症」 in formal medical names and diagnoses, and 「ＴＢ」 only as a dated name.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 土壌どじょうや堆積岩たいせきがんの中なかにある周囲しゅういより固かたい瘤こぶや団塊だんかい。ノジュール。
2. 結核菌けっかくきんにより起おこる結節けっせつのような病変びょうへん。また、結核菌けっかくきんによって起おこる疾患しっかんの総称そうしょう。特とくに肺結核はいけっかく。