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baculum

British  
/ ˈbækjʊləm /

noun

  1. a bony support in the penis of certain mammals, esp the carnivores

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of baculum

C20: New Latin, from Latin: stick, staff

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The penis bone does not directly attach to the pelvis, so when the animal begins to decay, the baculum quickly becomes separated from the rest of the body.”

From The Guardian • Jan. 24, 2018

Although the baculum has been extensively examined by researchers over the years, there are still many unanswered questions.

From The Guardian • Jan. 24, 2018

The results show that the baculum first evolved 145–95 million years ago, in the common ancestor of primates and carnivores.

From Nature • Dec. 20, 2016

What causes a baculum to evolve is not clear.

From Economist • Dec. 13, 2016

The baculum can be viewed from any desired direction.

From The Baculum in Microtine Rodents by Anderson, Sydney