Dictionary.com
Thesaurus.com
Showing results for semilunar. Search instead for semi-lunar.

semilunar

American  
[sem-ee-loo-ner, sem-ahy-] / ˌsɛm iˈlu nər, ˌsɛm aɪ- /

adjective

  1. shaped like a half-moon; crescent.


semilunar British  
/ ˌsɛmɪˈluːnə /

adjective

  1. shaped like a crescent or half-moon

"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

Other Word Forms

Etymology

Origin of semilunar

First recorded in 1590–1600; semi- + lunar

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.

See Examples For:

At the base of the pulmonary trunk is the pulmonary semilunar valve, which prevents backflow of blood into the right ventricle during ventricular diastole.

From Textbooks Jun. 19, 2013

The semilunar valves form between weeks five and nine.

From Textbooks Jun. 19, 2013

Any condition that increases resistance requires a greater afterload to force open the semilunar valves and pump the blood.

From Textbooks Jun. 19, 2013

Blood is pumped from the heart, pushing open the pulmonary and aortic semilunar valves.

From Textbooks Jun. 19, 2013

In some cases, however, it has been found that after removal of a large pterygium, a retraction of the caruncle and the semilunar fold is apt to take place, which renders the eyeball unpleasantly prominent.

From A Manual of the Operations of Surgery For the Use of Senior Students, House Surgeons, and Junior Practitioners by Bell, Joseph

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training