Fill in the blank with the correct combining word element to complete the sentence (do not include the hyphen).

List of terms: hydrocephaly, chondrocyte, syringitis, salpingectomy, nucleotoxin, atheroma, ethmonasal, aerogen, somatogenic, glucogenic, glycopenia, calcipenia, lipoblast, glioblastoma, plasmapheresis, cytoarchitecture, sideropenia, cystoid, ketogenesis, chylopolesis, chymopolesis, squamofrontal.

A condition characterized by excessive fluid accumulation in the brain is __________cephaly.

A __________cyte is a cartilage cell.

Inflammation of the eustachian tube is __________itis.

__________ectomy is removal of the fallopian tube.

__________toxin is a poison that acts upon a cell nucleus.

__________oma is a tumor from a fatty deposit inside a vessel.

Relating to the ethmoid and nasal bones is __________nasal.

An __________gen is a gas-producing microorganism.

Originating in the body is __________genic.

Producing glucose is __________genic.

__________penia is a sugar deficiency.

__________penia is a calcium deficiency.