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Regional drug slang for an inhalant.


(pl. medusas, medusae) the jellyfish (medusoid) stage of the COELENTERATE life cycle, usually free-swimming and propelled by pulsations of the bell. Medusae usually reproduce sexually, giving rise to a POLYP stage from which the medusae are produced asexually Medusae form the dominant phase of the life history of members of the class Scyphozoa, but are often absent or of lesser importance in other classes of the phylum.


in Greek mythology, a Gorgon who turned men to stone.
caput Medusae - (1) varicose veins radiating from the umbilicus; - (2) dilated ciliary arteries girdling the corneoscleral limbus in rubeosis iridis. Synonym(s): head of Medusa
head of Medusa - Synonym(s): caput Medusae


jellyfish; a colony of animals comprising a bell from which hang a number of filaments and tentacles. Called also hydromedusa. Inflict painful stings and can cause death, even of humans. See also hydrozoa.

medusa head colonies
colonies of Bacillus anthracis on agar have this appearance of being domes with a fringe of filaments.
References in periodicals archive ?
Cixous achieves this movement in her portrayal of the mythological figure summoned by her title; she inserts herself, her interpretations, into the broader, intertextual Medusa in order to transform it.
They riveted us between two horrifying myths: between the Medusa and the abyss.
As Zajko and Leonard note, Cixous's use of the Medusa has come to illustrate well the power that resides in the malleability of myth.
Most surprising, perhaps, the Medusa we encounter in Welty's correspondence seems rather vulnerable.
Since we have to look at Medusa, she is pretty--or is that why?
What Welty seems to appreciate most about the image of the Medusa is that the figure, famous for being impossible to look at, now demands attention in the context of the representation.
With his sword on the neck of a sleeping, non-threatening Medusa, Perseus no longer enjoys the glory associated with an arduous and dangerous struggle.
Though it is not clear when Welty became fully aware of his homosexuality, a second letter she wrote him regarding Perseus and the Medusa effectively taps into the sexual discomfort he had been expressing in various forms.
The only thing more dear than your health is your self--One mustn't be at the expense of the other--If it had to be one I would rather have the true self not happy yet--struggling, beginning--than the partial or cut-away self now content--I think in us all there are Perseus & the Medusa--must keep on being--Only in a breath taking piece of art or in myth or poetry is the separation even bearably consummated--& then only as far as the very moment--too unexplorable beyond--even for heroes, much less for human beings--And then I feel too that the Medusa is.
Suzanne Marrs suggests that Welty here identifies herself with the Medusa (165), but Welty seems more invested in employing both Perseus and the Medusa to describe two battling selves in the same individual: John Robinson.