This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Having an abnormally low number of platelets in one's blood.

"On top of the asthma and allergies, I'd contracted a blood disorder called idiopathic thrombocytopenic purpura."

thrombocytopenia