armpit n : the hollow under the arm where it is joined to the shoulder; "they were up to their armpits in water" [syn: axilla, axillary cavity, axillary fossa]

Armpit \Arm"pit`\, n. [Arm + pit.] The hollow beneath the junction of the arm and shoulder; the axilla.

The axilla (also armpit, underarm, or oxter) is the area on the human body right under where the joint where the arm connects to the shoulder. The axilla is one of the four places where an medical thermometer can be used to measure human body temperature. The other places are the rectum, mouth, and ear canal.

In the area where the axllia is, the body parts that are found are the axillary vein, axillary artery, brachial plexus, lymph nodes and fat.

During puberty, hair will grow in the underarms. Many women choose to shave or remove this hair because it gives a neater and cleaner look when wearing some types of clothes, however some women do not shave and choose to have a natural look for cultural or symbolic reasons.

Body odor occurs in the axilla due to microorganisms.

• Underarm overhaul: After all that shaving and spraying, your poor old armpits need pampering - Daily Mail
  As if we didn’t have enough to do fighting crows’ feet, grey hairs and chipped nail polish, it seems that there is a new body part coming under scrutiny: the armpit. When graduate student Emer O’Toole showed off her hairy underarms on This Morning ... Read more on this news related to 'Armpit'
• Anna Faris shows off short 'do, underarm hair in 'Dictator' - AZCentral.com
  She adds, "I think the production office called saying, 'Just in case, can you keep your armpit hair for a while?' I said, 'Nope, it's all gone.' Read more on this news related to 'Armpit'
• This Morning guest shows off armpit hair after not shaving ... for 18 months - The Sun
  Emer, 28, proudly displayed the long dark underarm growth to viewers of the ITV1 show, and declared she was “furry and proud of it”, as she discussed her decision to turn her back on razorblades. The research student revealed she had opted not to ... Read more on this news related to 'Armpit'