Why is it der Theologieprofessor?

Theologieprofessor is a compound noun, and German compounds take the article of their last word: der Professor. So it’s der Theologieprofessor.

Sense 1
der

Meaning

[1] Professor of theology

[1] Professor für Theologie

Examples

[1] "The German Reich Minister for Science, Education and People's Education, Bernhard Rust (NSDAP), suspends the Swiss theology professor Karl Barth from his Bonn chair" "

[1] „Der deutsche Reichsminister für Wissenschaft, Erziehung und Volksbildung, Bernhard Rust (NSDAP), suspendiert den schweizerischen Theologieprofessor Karl Barth von seinem Bonner Lehrstuhl.“

[1] "Famous made the Jena theology professor Johann Gerhard (1582–1637) primarily his works on Lutheran belief" "

[1] „Berühmt machten den Jenaer Theologieprofessor Johann Gerhard (1582–1637) in erster Linie seine Werke zur lutherischen Glaubenslehre.“

Declension

1 Singular Plural
Nominativ der Theologieprofessor die Theologieprofessoren
Genitiv des Theologieprofessors der Theologieprofessoren
Dativ dem Theologieprofessor den Theologieprofessoren
Akkusativ den Theologieprofessor die Theologieprofessoren

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary