Hypertext Webster Gateway: "superincumbent"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Superincumbent \Su`per*in*cum"bent\, a. [L. superincumbens, p.
pr. of superincumbere. See {Super-}, and {Incumbent}.]
Lying or resting on something else.
From WordNet (r) 1.7 (wn)
superincumbent
adj : lying or resting on and exerting pressure on something else;
"superincumbent layers of dead plants cut off the air
and arrested decomposition"
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