adjective or·tho·trop·ic \¦ȯ(r)thə¦träpik\

Definition of orthotropic

  1. 1 :  having the longer axis more or less vertical — compare plagiotropic

  2. 2 :  being, having, or relating to properties (such as strength, stiffness, and elasticity) that are symmetric about two or three mutually perpendicular planes a piece of straight-grained wood is an orthotropic material

  3. 3 of a bridge :  designed so that the roadway serves as an orthotropic structural member :  constructed with a steel-plate deck as an integral part of the support structure


\-pə̇k(ə)lē\ adverb

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of orthotropic

orth- + -tropic

Seen and Heard

What made you want to look up orthotropic? Please tell us where you read or heard it (including the quote, if possible).


a brief usually trivial fact

Get Word of the Day daily email!