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norethynodrel

[nawr-uh-thahy-nuh-druh l, naw-reth-uh-nuh-drel]
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noun Pharmacology.
  1. a progestin, C20H26O2, used in combination with an estrogen in some oral contraceptives.
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Origin of norethynodrel

1955–60; nor- + ethyn(yl), components of 2 versions of its chemical name + -odrel, of uncertain derivation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018