ODK meaning in Academic & Science ?

Omicron Delta Kappa (ΟΔΚ), also known as The Circle and ODK, is a national leadership honor society in the United States, with chapters, known as circles, at more than three hundred college campuses. It was founded December 3, 1914, at Washington and Lee University in Lexington, Virginia, by fifteen student and faculty leaders. The society recognizes achievement in five areas: scholarship; athletics; campus and community service, social or religious activities, and campus government; journalism, speech and the mass media; and creative and performing arts. Some circles of ΟΔΚ are quasi-secret, in that newly selected members remain undisclosed for some time.

Membership in the Omicron Delta Kappa Society is regarded as one of the highest collegiate honors that can be awarded, in the tradition of Phi Kappa Phi and Phi Beta Kappa. To be selected as a member of ΟΔΚ, one must stand among the top thirty-five percent of all students at that particular institution and hold a leadership role in one of the society's five areas of recognition.