Hypertext Webster Gateway: "ratiocinate"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ratiocinate \Ra`ti*oc"i*nate\, v. i. [L. ratiocinatus, p. p. of
ratiocinari, fr. ratio reason. See {Ratio}.]
To reason, esp. deductively; to offer reason or argument.
From WordNet (r) 1.7 (wn)
ratiocinate
v : reason methodologically and logically
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