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Related to res judicata: Issue preclusion
res ju·di·ca·ta(rēz′ jo͞o′dĭ-kä′tə, rās′)
n. pl. res ju·di·ca·tae (-kä′tē, -tī)
1. The principle that a decision by a competent court in a case fully and fairly litigated is final and conclusive as to the claims and issues of the parties and cannot be relitigated.
2. A claim or issue that has been decided under this principle.
[Latin rēs iūdicāta, thing decided : rēs, thing + iūdicāta, feminine past participle of iūdicāre, to judge.]
res judicata(ˈreɪs ˌdʒuːdɪˈkɑːtə) or
(Law) law a matter already adjudicated upon that cannot be raised again
res ju•di•ca•ta(ˈriz ˌdʒu dɪˈkeɪ tə, ˈreɪs)
a thing adjudicated; a case that has been decided.
[1685–95; < Latin]
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|Noun||1.||res judicata - a matter already settled in court; cannot be raised again|