protonephridium
protonephridium defined in 1951 year
protonephridium - protonephridium;protonephridium - Organ thought to be excretory, present in Platyhelminthes, Nemertea, Rotifera, and some trochophore larvae; consisting of one or more flame cells, at the inner end of tubes which open to the exterior.
near protonephridium in Knolik
| protonema | home letter "P" start from "PR" | protoplasm |
definition of word "protonephridium" was readed 269 times