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epileptic of or indicating epilepsy. [3 definitions]
epilimnion the layer of the water of a lake, above the thermocline, that is warmest and contains the most oxygen. (Cf. hypolimnion.)
epilogue a short concluding section to a literary work, often summarizing what later becomes of the characters. [2 definitions]
epinephrine a hormone produced by the adrenal gland that stimulates muscle tissue and raises blood pressure; adrenaline. [2 definitions]
epiphany (cap.) a Christian celebration on January 6 of the revelation of the divinity of Jesus Christ to the Magi. [3 definitions]
epiphenomenon a phenomenon that appears to be related to a more important one. [2 definitions]
epiphyte a plant that grows upon another plant but provides its own nutrients, as certain orchids or lichens.
episcopacy government of a church by bishops. [3 definitions]
episcopal of or relating to a bishop or government of a church by bishops. [2 definitions]
Episcopalian of, belonging to, or relating to the Episcopal Church. [3 definitions]
episcopate the office, term, or post of a bishop. [3 definitions]
episiotomy an incision of the vulva often made to facilitate childbirth.
episode a single incident or event, or a related group of these, making up a segment in a life or a long narrative. [2 definitions]
episodic pertaining to or characteristic of an episode. [3 definitions]
epistemic of, connected with, or involving knowledge or the process of acquiring knowledge. [2 definitions]
epistemology the branch of philosophy dealing with the origin, nature, and limits of human knowledge. [2 definitions]
epistle a letter, esp. one having a formal subject or tone. [2 definitions]
epistolary like, involving, or found in letters or the writing of letters. [3 definitions]
epitaph on a gravestone or tomb, an inscription commemorating the dead person. [2 definitions]
epithalamium a poem, ode, or song honoring a bride, bridegroom, or couple.
epithelium a protective, membranous layer of tissue, usu. a single layer of close-knit cells, that lines the cavities and the outside of an organism.