See Also: Protamines(medicine)

symbiosis (iou) and Protamines (medicine)


symbiosis (iou)



symbiosis noun. . E17.
[mod. Latin from Greek sumbiosis a living together, from sumbioun live together, from sumbios (adjective) living together, (noun) companion, partner, formed as SYM- + bios life: see -OSIS.]
Living together, communal living. rare. E17.
Biology. An interaction between two dissimilar organisms living in close physical association; esp. one in which each benefits the Other. Cf. COMMENSALISM, HELOTISM, MUTUALISM. L19.
transf. & fig. A relationship or association of mutual advantage between people, organizations, etc. E20.
'symbiose verb intrans. (Biology) live as a symbiont M20.
'symbiote noun (Biology) (a) a combination of two symbiotic organisms; (b) = SYMBIONT: L19.
symbi'otic adjective (a) Biology associated or living in symbiosis; pertaining to or involving symbiosis; (b) transf. & fig. mutually advantageous: L19.
symbi'otically adverb L19.

Protamines (medicine)


protamines
<chemical> A group of simple proteins that yield basic amino acids on hydrolysis and that occur combined with nucleic acid in the sperm of fish. Protamines contain very few kinds of amino acids. Protamine sulfate combines with heparin to form a stable inactive complex; it is used to neutralise the anticoagulant action of heparin in the treatment of heparin overdose.

Pharmacological action: heparin antagonists.