from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The circulatory fluid of certain invertebrates, analogous to blood in arthropods and to lymph in other invertebrates.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A circulating fluid in the bodies of some invertebrates that is the equivalent of blood.
from The Century Dictionary and Cyclopedia
- n. The nutritive fluid, comparable to blood or lymph, which occupies the body-cavity of some invertebrates, as polyzoans.
- n. The blood and the lymph considered together.
Sorry, no etymologies found.
Instead, the insects blood, called hemolymph, flows almost freely throughout the body.
Instead of red pigmented blood, they prefer clear, yellowish fluid called hemolymph that flow over within the body cavity.
I'm not sure about the veins, which are hollow and contain hemolymph.
Most crustaceans have a dorsal heart, but some smaller crustaceans simply circulate their hemolymph with body movements.
The hemolymph deposits these wastes in the excretory tubule as insoluble crystals.
The hemolymph circulates through the hemocoel by body movements.
Undigested food accumulates in the midgut and is absorbed by the hemolymph.
All organ systems are found in the hemocoel and are bathed in hemolymph.
In places where this insect has displaced native populations, the alkaloid-covered shell and habit of releasing hemolymph (insect blood) when frightened is such that even a few per standard 280-gallon (1000-litre) bin will produce a recognizable off-flavour.
It has been found that the hemolymph of a particular insect can be partially vitrified at cooling rates that are likely to occur in nature.