Search calcium oxalate (CaC2O4) calcium oxalate (CaC2O4), a small, colorless crystal that may be present in urine or may be a component of renal calculi. Tweet Telegram VK Random Words Vibrio cholerae Equal Employment Opportunity Commission (EEOC) zaleplon extended arm leukocyte migration inhibition factor intravesical ureterocele TVL bradycardia artificial tears