more multigrade

Science Dictionary
grade   (grād)  Pronunciation Key 
  1. The degree of inclination of a slope, road, or other surface.

  2. A grouping of organisms done purely on the basis of shared features and without regard to evolutionary relationships. Grades may include organisms that do not share a common ancestor, or may exclude some organisms having the same common ancestor as the other organisms in the grade. For this reason, many taxonomists do not accept grades as formal classifications. The class Reptilia (reptiles) is a grade since it includes dinosaurs but not birds, even though birds are descended from dinosaurs. Compare clade.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Previous Definition: more multifunctional
Next Definition: more multigrain
Words Near: more multigrade
More from
Synonyms and Antonyms for more multigrade
More from
Search for articles containing more multigrade
More from Translator Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2015, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature