embolus
/ˈɛmbələs/
noun 2
Definitions
noun
1
An obstruction causing an embolism: a blood clot, air bubble or other matter carried by the bloodstream and causing a blockage or occlusion of a blood vessel.
2
The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct.
Those spiders with a simple bulb insert most of this; those with a complex palp insert only the embolus, which in some species is very long […]
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