"extraordinary member" is a correct and usable phrase in written English.
It can be used to refer to a member of a group or organization who holds a particular status or role that is exceptional or outstanding in some way. Example: "As an extraordinary member of the team, Sarah brought fresh ideas and innovative thinking to every project she worked on."
The Organized Medical Staff of St . Vincents Hospital mourns the tragic loss of Dr. Margaret Dennis Smith an extraordinary member of our staff since 1993.
In Bengal, in the second half of the 19th century, there was the Dutt family, who wrote in English, and whose most extraordinary member, Toru Dutt, died when she was 21.
In an interview in 2010, Mr. Rudman called Justice Souter an "extraordinary member of the court" whose views, though he was part of the court's liberal minority on social issues, "will become majority opinions and will become the law of the land".
Bo was an extraordinary member of the PwC family, a friend and colleague to many.
Once again Paranhos who was extraordinary member of the Council of State since 18 August 1866 became Minister of Foreign Affairs.
As many as 136 Members may be appointed annually, not including extraordinary Members and those inducted on an honorary basis, and there is no limit on how many Members may be living at one time., there were 2,121 living Members, none being honorary.
The ecological importance of dinoflagellates is also extraordinary; members of the group play key roles as marine primary producers, coral reef zooxanthellae, and (micro consumers in aquatic communities around the globe.
"Marc has been an extraordinary board member, and we greatly appreciate the leadership, insight and expertise he has provided over the past six years.
Even the extraordinary cast members have less room here than in "The Force Awakens" to let their personalities show; the movie's cinematic fabric is cut too tight, the frame is too constraining, the story lines hold them stiff and still like so many guy wires.
Among the programme's extraordinary claims: members of the Russian Athletics Federation extorted €450,000 (£358,000) from Shobukhova to cover up her biological passport problems; Mariya Savinova, the London 2012 800m champion, was doping along with 99% of Russian athletes; and, staggeringly, the Russian anti-doping agency was covering up positive tests.
It seemed extraordinary to a member of the upwardly mobile bourgeoisie that these boys were incapable of answering two basic questions: How did your family make its money?
