rhabdite

from The Century Dictionary.

• noun One of the three pairs of appendages of the abdominal sternites which unite to form the ovipositor of some insects.
• noun A refractive rod-like body of homogeneous structure and firm consistency, found in numbers in the cells of the integument of most turbellarian worms.
• noun A member of the genus Rhabditis.
• noun A phosphide of iron, occurring in minute tetragonal prisms in some meteoric irons.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) A minute smooth rodlike or fusiform structure found in the tissues of many Turbellaria.
• noun (Zoöl.) One of the hard parts forming the ovipositor of insects.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun zoology A minute smooth rod-like or fusiform structure found in the tissues of many Turbellaria.
• noun zoology One of the hard parts forming the ovipositor of insects.