contagious

/kənˈteɪdʒəs/adjective

Spreading easily from one person to another.

Example sentence

“Chickenpox is highly contagious among young children.”

Laughter, enthusiasm, and yawns all get called contagious. Strictly, contagious diseases spread by contact, while 'infectious' covers other routes too.

health

Related words

wristThe joint connecting the hand to the arm, where the forearm bones meet the small bones of the hand.remedyA medicine or treatment that eases or cures an illness.ankleThe joint that links the foot to the leg, together with the surrounding lower leg and upper foot.checkupA regular visit to a doctor or dentist to make sure everything is healthy.shoulderThe part of the body where the arm joins the trunk, between the neck and the upper arm.fatigueDeep tiredness brought on by hard physical or mental effort.