Upper topsail

(Naut.) the upper half of a double topsail.

See also: Upper

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Perched 100ft above the deck on the upper topsail yardarm of a Tall Ship in a Force 4 wind, I could have done with a brandy to preserve my nerves as we stowed the sails.
The compensation factor is that the sails themselves all have their own jaunty, swashbuckling names - Royal, Gallant, Upper Topsail, Lower Topsail and Course.
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