Dictionary.com
definitions

tibia

[tib-ee-uh]
noun, plural tib·i·ae [tib-ee-ee] /ˈtɪb iˌi/, tib·i·as.
  1. Anatomy. the inner of the two bones of the leg, that extend from the knee to the ankle and articulate with the femur and the talus; shinbone.
  2. Zoology.
    1. a corresponding bone in a horse or other hoofed quadruped, extending from the stifle to the hock.
    2. (in insects) the fourth segment of the leg, between the femur and tarsus.

Origin of tibia

First recorded in 1685–95, tibia is from the Latin word tībia literally, reed pipe
Related formstib·i·al, adjectivepost·tib·i·al, adjectivepre·tib·i·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for pretibial

tibia

noun plural tibiae (ˈtɪbɪˌiː) or tibias
  1. Also called: shinbone the inner and thicker of the two bones of the human leg between the knee and ankleCompare fibula
  2. the corresponding bone in other vertebrates
  3. the fourth segment of an insect's leg, lying between the femur and the tarsus
Derived Formstibial, adjective

Word Origin for tibia

C16: from Latin: leg, pipe
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
Word Origin and History for pretibial

tibia

n.

lower leg bone, 1726, from Latin tibia "shinbone," also "pipe, flute," in which sense it originally came into English (1540s). Of unknown origin. The Latin plural is tibiæ.

Online Etymology Dictionary, © 2010 Douglas Harper
pretibial in Medicine

tibia

[tĭb′ē-ə]
n. pl. tib•i•as
  1. The inner and larger of the two bones of the lower leg, extending from the knee to the ankle, and articulating with the femur, fibula, and talus.shinbone
Related formstib′i•al adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
pretibial in Science

tibia

[tĭb′ē-ə]
  1. The larger of the two bones of the lower leg or lower portion of the hind leg. See more at skeleton.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.