Skip to content

Cancer Terminology

  • About
  • Terminology
  • Genetic Terminology
  • Drug Terminology
Cancer Terminology

Single Biggest Cancer Dictionary in the World

What is

third-degree relative

?

Press
Pronunciation: /θərd dɪˈgri ˈrɛlətɪv/

third-degree relative

Definition

A first cousin, great-grandparent, great-aunt, great-uncle, great-niece, great-nephew, great-grandchild, half-aunt, or half-uncle of an individual. Also called TDR.

Explore Cancer Terminology

Find more

water deprivation test

inoperable

talc

stage IV vaginal cancer

blood transfusion

riboflavin

surrogate endpoint

choroid plexus

Explore Cancer Drug Terminology

find more

autologous CISH-inactivated TILs

autologous engineered TCR-T cells KSH01

autologous lymphoma cell/autologous dendritic cell electrofusion hybrid vaccine

anti-HER3 monoclonal antibody GSK2849330

Selzentry

glycopyrrolate

autologous cytokine-induced killer cells

lentivirus vector CCR5 shRNA/TRIM5alpha/TAR decoy-transduced autologous CD34-positive hematopoietic progenitor cells

Explore Genetic Cancer Terminology

find more

splice-site mutation

gonadal mosaicism

mutation analysis

microsatellite instability

clinical utility

hemizygous

Sanger sequencing

nonpenetrance

  • About
  • Terminology
  • Genetic Terminology
  • Drug Terminology

© 2026 Cancer Terminology

  • About
  • Terminology
  • Genetic Terminology
  • Drug Terminology