† primigenal, a. Nat. Hist. Obs.
(praɪˈmɪdʒɪnəl)
[f. L. prīmigen-us (= prīmigenius: see primigenial) + -al1.]
Belonging to or constituting the regnum primigenum, a kingdom of nature proposed to include the lowest or most primitive forms of animals and plants (corresponding to Wilson's Primalia or Haeckel's Protista).
| 1860 J. Hogg in Edinb. New Phil. Jrnl. XII. 223, I here suggest a fourth or an additional kingdom, under the title of the Primigenal kingdom. Ibid., The Primigenal kingdom might be placed either the fourth and last, or between the vegetable and the animal kingdoms. |