An expert is someone who has a lot of knowledge and skill in a specific area. They are highly knowledgeable and experienced, making them very good at what they do. Full definition
This passionate group of experts in health, fitness and nutrition are dedicated to helping you attain your lifelong health and fitness goals. (blog.wellnessfx.com)
I was recently speaking on a panel of experts on awakening your best self. (mindbodygreen.com)
You bet, say experts at two of the country's most successful pet foster programs. (maddiesfund.org)