Hypertext Webster Gateway: "clitellus"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Clitellus \Cli*tel"lus\, n. [NL., prob. fr. L. clitellae a
packsadle.] (Zo["o]l.)
A thickened glandular portion of the body of the adult
earthworm, consisting of several united segments modified for
reproductive purposes.
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