'Primogenitor' definitions:
Definition of 'primogenitor'
From: WordNet
noun
An ancestor in the direct line [syn: progenitor, primogenitor]
Definition of 'Primogenitor'
From: GCIDE
- Primogenitor \Pri`mo*gen"i*tor\, n. [LL., fr. L. primus first + genitor a begetter.] The first ancestor; a forefather. [1913 Webster]