Definify.com
Webster 1913 Edition
Unsolder
Un-sol′der
,Verb.
 T.
 [1st pref. 
un- 
+ solder
.] To separate or disunite, as what has been soldered; hence, to divide; to sunder. 
[Formerly written also 
unsoder
.] Tennyson.
 Definition 2025
unsolder
unsolder
English
Verb
unsolder (third-person singular simple present unsolders, present participle unsoldering, simple past and past participle unsoldered)
- To reverse the process of soldering, such as by breaking the joint and removing the solder