Acephalous

1. a. Deficient and the beginning, as a line of poetry.
2. a. Headless.
3. a. Without a distinct head; — a term applied to bivalve mollusks.
4. a. Having the style spring from the base, instead of from the apex, as is the case in certain ovaries.
5. a. Without a leader or chief.
6. a. Wanting the beginning.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.