A cross reference, directly or indirectly, involving a word unit meaning "nail (finger, toe); claw": onych-.
A cross reference of other word family units that are related directly, indirectly, or partially with: "opening, hole, cavity, tract": alveolo-; antro-; anu-; celo-; coelio-; concho-; fenestra-; hernio-; hiat-; meato-; ora-; parieto-; poro-; pyl-, pyle-; pylor-; sphinctero-; splanchn-; stomato-; syringo-; urethro-; vagino-; ventricul-.
A cross reference of other word family units that are related directly, indirectly, or partially with: "opening, hole, cavity, tract": alveolo-; antro-; anu-; celo-; coelio-; concho-; fenestra-; hernio-; hiat-; meato-; ora-; parieto-; poro-; pyl-, pyle-; pylor-; sphinctero-; splanchn-; stomato-; syringo-; uretero-; vagino-; ventricul-.