The plant leaves are lateral outgrowth of the stem which develop from the meristematic tissues of buds. They are the part of the plant shoot which serves as the chief food-producing organ in most vascular plants.
Adjective[edit] ad hoc â(comparative more ad hoc, superlative most ad hoc) 1  For a particular purpose. 2  Created on the spur of the moment; impromptu. ( sciences) (of a hypothesis) Postulated solely to save a theory from being falsified, without making any new predictions.
translation and definition ad hoc, Latin-English Dictionary online. ad hoc. to this end, for this, to this point, to this. Generally means for this, in the sense of improvised on the spot or designed for only a specific, immediate purpose.