Dependent Co-origination

means that of all phenomena, i.e., all phenomena are dependently co-originated on causes and conditions(ex. plants originates/germinate/grow on a seed and water/air/light/gravity/temperature, etc. and consciousness/perception is co-originated on sense organs and objects. when perception/consciousness is analyzed to be originated on contact/conjunction of the sense organ and objects: core portion of the Twelvefold Dependent Co-origination, most likely the initial awakening of mutual/co-origination to the universal law of Dependent Co-origination). The simplest formula is "when A is provided, B originates." The most standard/popular one is the twelve limbed/part dependent origination as in the following (composed of the three major dependent origination of 1) that of consciousness/perception/mind/mental function, 2) that of suffering (directly from craving, tanhā, lit. thirst, as if one may want to drink even sea water at shipwreck, even if one knows it will cause more thirst), 3) that of samsara (transmigration/state change due to appropriation/identification of the body-mind complex as the self, thus one becomes sick, old, dead, later identified as the Five/Six Ways/Paths of hell being, devilish being, hungry ghost: originally dead one, beastly being, human being, celestial being, etc., lit. complete/constant flow/impermanence, involvement/involution into flow/impermanence/identification).

The traditional interpretation of it as embryo-genetic process, etc. were due to misunderstanding of samsara (as Hindu interpretation, due to Hindu converts to Buddhism). The original meaning is as follows from the original meaning of the three dependent originations as listed above:

http://www.missourizencenter.org/DependentOrigination.pdf