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Webster 1913 Edition
Ecthoreum
‖
Ecˊtho-re′um
,Noun.
pl.
Ecthorea
(#)
. [NL., fr. Gr. [GREEK] to leap out;
εκ
out + [GREEK], [GREEK], to leap, dart.] (Zoöl.)
The slender, hollow thread of a nettling cell or cnida. See
Nettling cell
. [Written also
ecthoræum
.]