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Webster 1913 Edition

Aculeus

‖

A-cu′le-us

,
Noun.
;
pl.
Aculei
.
[L., dim. of
acus
needle.]
1.
(Bot.)
A prickle growing on the bark, as in some brambles and roses.
Lindley.
2.
(Zool.)
A sting.

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