from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various small, chiefly freshwater turbellarian flatworms of the order Tricladida, having soft, broad, ciliated bodies, a three-branched digestive cavity, and the ability to regenerate body parts.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various freshwater flatworms, of the family Planariidae, especially of the genus Planaria.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the Planarida, or Dendrocœla; any turbellarian worm.
from The Century Dictionary and Cyclopedia
- Flat, as a turbellarian; belonging to the Planarida or Dendrocœla. See cut under Dendrocœla.
- n. A member of the suborder Planarida.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
And now for something completely different: the land planarian Bipalium adventitium.
As usual, I was looking for slugs and snails and there was this planarian crawling around the roots of a tree.
I have selected an unfortunate earthworm from the backyard and will be giving it to the planarian soon.
Here is a picture I took in the field; the planarian was still on the underside of the log.
I wrote about the land planarian Bipalium adventitium in this post.
The planarian hasn't eaten for at least about 50 hours.
In this picture, the planarian was probably ~4 cm long.
Irina adds a piece of flair that looks kind of like a sparkly planarian worm to a baby blue top.
Wait, it's not hair, it's planarian flatworms, squirming with an earthy taste oozing down your throat.
I was keeping the planarian alive for another science project.