Lewis Short
assĭmŭlātĭo | ads- | assĭ-mĭlātĭo (noun F) : (better , not ; v. assimulo
* Fin.), , f.id., an assimilating.
* A being similar, similarity, likeness: prodigiosa adsimulatio,Plin. 11, 49, 109, § 262.
* In rhet., a feigned adoption of the opinion of one's hearers: est (adsimulatio) cum id, quod scimus facile omnes audituros, dicimus nos timere, quomodo accipiant; sed tamen veritate commoveri, ut nihilo setius dicamus, Auct. ad Her. 4, 37, 49.
* A comparison of one thing with others: dolosa,Dig. 2, 18, 19, § 24; Cod. Th. 16, 2, § 18.
Charlton T. Lewis, Charles Short, A Latin Dictionary