Hypertext Webster Gateway: "tympan"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tympan \Tym"pan\, n. [F., fr. tympanum a kettledrum, a panel of
a door. See {Tympanum}, and cf. {Tymp}.]
1. A drum. [Obs.]
2. (Arch.) A panel; a tympanum.
3. (Print.) A frame covered with parchment or cloth, on which
the blank sheets are put, in order to be laid on the form
to be impressed.
{Tympan sheet} (Print.), a sheet of paper of the same size as
that to be printed, pasted on the tympan, and serving as a
guide in laying the sheets evenly for printing. --W.
Savage.
From WordNet (r) 1.7 (wn)
tympan
n : a musical percussion instrument; usually consists of a
hollow cylinder with a membrane stretch across each end
[syn: {drum}, {membranophone}]
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