- 直肠癌 zhícháng'ái rectal cancera type of cancer that develops in the rectum, which is the last part of the large intestine
- 直肠子 zhíchángzi straight shooter(coll.) a forthright person
- 直肠直肚 zhíchángzhídù outspokenfrank and outspoken
- 直肠镜 zhíchángjìng proctoscopeproctoscope (medicine)
- 肛门直肠 gāngménzhícháng rectumrectum (anatomy)