tracheole

Definition

One of the fine branching tubes of the trachea of an insect, which penetrates the tissues to provide oxygen.

Etymology

From trachea + -ole.

Example Sentences

• "Indeed, in the muscles of the wings every fibre has its own particular tracheole (small trachea)."
• "A subsequent molting of the intima of the trachea opens a connection between the lumen of the tracheole and the trachea. At the same time or a little later the tracheole breaks forth from its mother cell, uncoils, and extends far beyond the cell in which it was developed."
• "Oxygen is absorbed all over the body surface through branched tracheoles which are located directly under the body surface."