semimajor axis

noun

semi·​ma·​jor axis ˌse-mē-ˈmā-jər- 

ˌse-ˌmī-, 

-mi-

: one half of the major axis of an ellipse (such as that formed by the orbit of a planet)

Word History

First Known Use

1818, in the meaning defined above

Rhymes for semimajor axis

• chemoprophylaxis
• anaphylaxis
• chemotaxis
• epistaxis
• prophylaxis
• praxis
• taxus