from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having three parts; threefold.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having three parts; triple.
from the GNU version of the Collaborative International Dictionary of English
- adj. Threefold.
from The Century Dictionary and Cyclopedia
- Threefold; triple.
He is hard upon Christianity and its “trinal God”: I have not softened his expression
At this stage in the development of Marxism it may seem as fruitless a task to determine which, if any, version of Marxism comes closest to Marx's own doc - trinal intent as to ask which conception of Christianity, if any, is closest to the vision and teachings of its founder.
In a word, the latter variety of ethics based on consequences (Erfolgsethik) was a kind of moral Machiavellism, and this is precisely what casuistry was in the framework of the Catholic doc - trinal system.
Of sound that by the trinal breath was made, 
For example, a vast number of languages had at an early period of their development, besides the singular and plural, a dual number, some even a trinal, which they have let go at a later.
Flags of the 'Three free Peoples of the Universe,' trinal brotherly flags of England, America, France, have been waved here in concert; by
The words thus viewed afford the following doc - trinal propofitidii; That every unrenewed man is un - der the power of atheifm. '
De philofophorum doc - trinal i bell us ex Cicerone, 8vo.
 l. 15 trinal triplicities: A treatise on the Heavenly Hierarchy
The doctrine of the trinal unity of man (the what Does, what Knows, what Is) ascribed to John (vv. 82-104), and upon which his discourse may be said to proceed, leads up the presentation of the final stage of the Christian life on earth -- that stage when man has won his way to the kingdom of the "what Is" within himself, and when he no longer needs the outward supports to his faith which he needed before he passed from the "what Knows".