«We also found that FnEDA, which is undetectable in healthy adults, was markedly increased in the skin biopsies of patients with scleroderma.» (sciencedaily.com)
ALMA's unprecedented sensitivity enables us to detect weak radio emissions which are undetectable by other telescopes. (alma-telescope.jp)
Older dogs in particular may harbor malignant tumors which are undetectable through physical examination. (homevet.com)