See Also: arrowhead(medicine)
arrowhead(dictionary)
Arrowhead - Archery(gambling)
Arrowhead Regional Medical Center(health)

wormling (iou) and arrowhead (medicine)


wormling (iou)



wormling noun. L16.
[from WORM noun + -LING1.]
A small worm; fig. a poor despicable creature.

arrowhead (medicine)


arrowhead


1. <botany> An aquatic plant of the genus Sagittaria, especially. S. Sagittifolia, named from the shape of the leaves.

2. <cell biology> Fanciful description given to the pattern of myosin molecules attached to a filament of F actin. Easier to see if tannic acid is added to the fixative. The arrowheads indicate the polarity of the filament, the barbed (attachment) end is the site of major subunit addition.