Caecum
/ˈsiːkəm/
Definition 1 of 1
Pro Tip 1/3Medical Specific
Used mainly in medical or biological contexts, not in everyday conversation. 
During the surgery, the surgeon examined the caecum for any abnormalities.
Pro Tip 2/3Pronunciation
Pronounced 'see-kum'. The 'a' in caecum is silent, unlike in some Latin words. 
Make sure to pronounce 'caecum' correctly during the presentation.
Pro Tip 3/3Spelling Confusion
Easily confused with 'cesium,' a chemical element. Context will differentiate them. 
I misheard 'cesium' for 'caecum' because of their similar pronunciation.