(Canada, US, uncountable) Alternative form of tylenol (genericized trademark) (the pharmaceutical drug acetaminophen (“paracetamol”))

(Canada, US, pharmacology) A brand of acetaminophen (“paracetamol”)

(surgery) The surgical removal of a tumour or cyst, especially from the breast; a lumpectomy.

An English surname originating as an occupation for a tiler. / A male given name transferred from the surname.

plural of tylectomy

(uncountable) The policies of U.S. president John Tyler. / The practice of abandoning the political party to which political office is owed, defecting while in office, committing political apostasy.

To abandon the political party to which political office is owed, as United States President John Tyler did during his term of office (1841-45), to defect to another party or political position while in office, to commit political apostasy.

plural of tylid

(zoology) Any woodlouse in the family Tylidae.

plural of tyler