2. A citadel; a fortress; hence, a defense.
Thou hast been a shelter for me, and a strong tower
from the enemy. --Ps. lxi. 3.
3. A headdress of a high or towerlike form, fashionable about
the end of the seventeenth century and until 1715; also,
any high headdress.
Lay trains of amorous intrigues In towers, and
curls, and periwigs. --Hudibras.
4. High flight; elevation. [Obs.] --Johnson.
{Gay Lussac's tower} (Chem.), a large tower or chamber used
in the sulphuric acid process, to absorb (by means of
concentrated acid) the spent nitrous fumes that they may
be returned to the Glover's tower to be reemployed. See
{Sulphuric acid}, under {Sulphuric}, and {Glover's tower},
below.
{Glover's tower} (Chem.), a large tower or chamber used in
the manufacture of sulphuric acid, to condense the crude
acid and to deliver concentrated acid charged with nitrous
fumes. These fumes, as a catalytic, effect the conversion
of sulphurous to sulphuric acid. See {Sulphuric acid},
under {Sulphuric}, and {Gay Lussac's tower}, above.
{Round tower}. See under {Round}, a.
{Shot tower}. See under {Shot}.
{Tower bastion} (Fort.), a bastion of masonry, often with
chambers beneath, built at an angle of the interior
polygon of some works.
{Tower mustard} (Bot.), the cruciferous plant {Arabis
perfoliata}.
{Tower of London}, a collection of buildings in the eastern
part of London, formerly containing a state prison, and
now used as an arsenal and repository of various objects
of public interest.
On the other side an high rock towered still.
--Spenser.
My lord protector's hawks do tower so well. --Shak.