liposome

[lip-uh-sohm, lahy-puh-]
noun
Cell Biology. a microscopic artificial sac composed of fatty substances and used in experimental research of the cell.

Origin:
1905–10; lipo-1 + -some3

liposomal, adjective
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World English Dictionary
liposome (ˈlɪpəʊˌsəʊm)
 
n
a particle formed by lipids, consisting of a double layer similar to a natural biological membrane, enclosing an aqueous compartment

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

liposome lip·o·some (lĭp'ə-sōm', lī'pə-)
n.
An artificial microscopic vesicle consisting of an aqueous core enclosed in one or more phospholipid layers, used to convey vaccines, drugs, enzymes, or other substances to target cells or organs.

The American Heritage® Stedman's Medical Dictionary
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Example sentences
Swallowed by a liposome, a primitive genetic molecule would have been unequipped to manufacture channels through the membrane.
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