pro tem is an adjective and adverb meaning "for the time being". It carries 2 recorded senses.
for the time being
“he is the president pro tem”
“designated him to act as consul protempore”
for the time being; temporarily
“accepting pro tem that hypothesis consistent with the facts”
Definitions, synonyms and semantic relations for pro tem come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.