Glossary of Scientific Terms and Expressions: G

— is a VIEWER-PARTICIPANT WEBSITE.Click on the link for information on what that means. This glossary was compiled and edited by Jerry Cates, using multiple sources, including the references listed at the end of this article:

A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – Q – R – S – T – U – V – W – X – Y – Z

  • geniculate (jin-IK-yoo-lat): L. geniculum = little knee, knotty; 1. zool. anat. — bent, knee-like; a. arach. anat. — usu. pertains to chelicerae in which the basal segment (paturon) extends beyond the clypeus giving the chelicerae a bent appearance.
  • genital bulb (see bulb)
  • glabrous (GLA-bruhs): L. glaber = bald, smooth; 1. zool. anat. — smooth, shiny; a. arach. anat. — usu. ref. to a smooth cuticle that is without hairs or spines.
  • globose (GLO-bos): L. globos = sphere, globe; 1. zool. anat. — rounded, spherical.
  • gnathobase (NAATH-o-bas): see endite.
  • gnathocoxa (naath-o-CAHX-ah): see endite.
  • gonopore (GAWH-no-por): Gr. γονος “gonos” = that which is begotten or produced, young animals, fruit + Gr. πορος “poros” = a passage, a way though, a hole; 1. zool. anat. — the genital opening; a. arach. anat. — the genital opening in the middle of the epigastric furrow.



  • anat. = anatomy; arach. = arachnid; behav. = behavioral; biol. = biological (inclusive of all animals and plants); bot. = botanical (inclusive of all plants); Gr. = Greek; L. = Latin; q.v. = L. quod vide = which see; pl. = plural; taxon. = taxonomy; zool. = zoological (inclusive of all animals).



  • Allaby, Michael, Ed. 1991. The Concise Oxford Dictionary of Zoology. Oxford Press.
  • Beccaloni, Jan. 2009. Arachnids; Glossary, p. 319. University of California Press, p. 56.
  • Gertsch, Willis J., 1979. American Spiders, 2nd Edition: Glossary, pp. 255-260. Von Nostrand Reinhold Company.
  • Howell, W. Mike, and Ronald L. Jenkins. 2004. Spiders of the Eastern United States; Glossary, Chapter X, pp. 341-348. Pearson Education.
  • Jackman, John A. 1997. A Field Guide to Spiders & Scorpions of Texas: Glossary pp. 173-177. Texas Monthly.
  • Kaston, B. J. 1978. How to know the spiders: Index and Pictured Glossary, pp. 267-272. McGraw Hill Company.
  • Preston-Mafham, Rod. 1996. The Book of Spiders and Scorpions; Glossary, pp. 140-141. Barnes & Noble Books, New York.
  • Ubick, D., P. Paquin, P.E. Cusing and V. Roth, editors, 2005. Spiders of North America, Chapter 72: Glossary — pronunciation guide. Published by the American Arachnological Society.
  • Venes, Donald, Ed. 2009. Taber’s Cyclopedic Medical Dictionary, 21st Ed. F.A. Davis Company, Philadelphia.
  • Williams, Tim. 2005. A Dictionary of the Roots and Combining Forms of Scientific Words. Squirrox Press, Norfolk, England.

—————————————– is a VIEWER-PARTICIPANT WEBSITE.Questions? Corrections? Comments? e-mail You may also register, log in, and leave a detailed comment in the space provided below.