The word "adept" can be signed by using the ASL sign for "skilled" or "proficient" with both hands held in a parallel position and moving them together in a slight…
To sign the word "adeps," use American Sign Language (ASL) and form the letter A with your dominant hand, then slide it down the palm of your other hand.
Adephagous is signed by making a "V" shape with your dominant hand near your mouth, then moving it down and away from your face while opening and closing your fingers.
To sign "adephagia", use the fingerspelling alphabet to spell out A-D-E-P-H-A-G-I-A, with each letter being formed by a specific handshape and movement.
To sign the word "adeona," use your dominant hand to make a fist with your index finger extended. Starting at your forehead, move your hand out and down, ending with…
To sign the word adenoviruses, first fingerspell "adenoviruses" and then use the sign for "virus" with both hands by making a circular motion near your face.