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ramus

American  
[rey-muhs] / ˈreɪ məs /

noun

Botany, Zoology, Anatomy.

plural

rami
  1. a branch, as of a plant, vein, bone, etc.


ramus British  
/ ˈreɪməs /

noun

  1. the barb of a bird's feather

  2. either of the two parts of the lower jaw of a vertebrate

  3. any part or organ that branches from another part

"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 ramus

1795–1805; < Latin rāmus branch, twig, bough; akin to rādīx root 1 ( radix )

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 mouse sensory barrel cortex was activated by stimulation of the contralateral ramus infraorbitalis of the trigeminal nerve using a set of custom-made bipolar electrodes inserted percutaneously.

From Nature • Apr. 4, 2014

Extending downward and laterally from the body is the inferior pubic ramus.

From Textbooks • Jun. 19, 2013

This ligament spans the distance between the base of the skull and the lingula on the medial side of the mandibular ramus.

From Textbooks • Jun. 19, 2013

The plural of ramus communicans is rami communicantes and the singular of phalanges is phalanx.

From Scientific American • May 15, 2012

Its posterior end rests against the anterior surface of the transverse process of the atlas, from which it extends forwards and downwards, slightly curved, to beneath the ramus of the jaw.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" by Various