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1. Capable of causing infection: an infectious microorganism.
2. Capable of being transmitted by infection: an infectious disease.
3. Capable of transmitting a disease; contagious: Is the patient still infectious?
4. Spreading or tending to spread from one to another: an infectious laugh.

in·fec′tious·ly adv.
in·fec′tious·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.infectiously - in a contagious manner; "she was contagiously bubbly"
بصورةٍ مُعْدِيَه
fertõzõ módon
meî smitandi hætti
bulaşıcı şekilde


(inˈfekt) verb
to fill with germs that cause disease; to give a disease to. You must wash that cut on your knee in case it becomes infected; She had a bad cold last week and has infected the rest of the class.
inˈfection (-ʃən) noun
1. the process of infecting or state of being infected. You should wash your hands after handling raw meat to avoid infection.
2. a disease. a throat infection.
inˈfectious (-ʃəs) adjective
likely to spread to others. Measles is an infectious disease.
inˈfectiously adverb
Mentioned in ?
References in classic literature ?
And besides, Veslovsky was at first so naively distressed, and then laughed so good-humoredly and infectiously at their general dismay, that one could not but laugh with him.
My way of giving physic is evidently the best, for you look better already," he said, laughing so infectiously that Rose followed suit, saying saucily
Either way, it was just one of the things that made me smile during this infectiously upbeat show - one I'd had on the turkey list.
THE BIG SICK (15) HH HHH THE first half of this comedy infectiously funny and left me in stitches, but a second half overdose of mawkishness brought me out in a rash.
THE first half of this comedy is infectiously funny and left me in stitches, but a second half overdose of mawkishness brought me out in a rash.
Pen Pineapple Apple Pen,' or 'PPAP,' a Japanese song brandished by many as an infectiously viral 'ringtone,' has not only 'brainwashed' Japanese social media but also other Asian online users.
With Ronnie, the wisecracks spilled effortlessly - and infectiously - to those lucky to share his company.
Rosie & the Riveters are so infectiously fun that it's impossible not to like this talented foursome from Saskatoon.
And while most of us - me included - don't know Ali personally, we feel like we do - a real testament to his broadcasting skill and infectiously optimistic personality.
Veteran TV crimeshow producer Dean Hargrove ("Columbo," "Diagnosis: Murder") finds a new groove, and generously shares his enthusiasm, in "Tap World," an infectiously spirited and pleasingly celebratory documentary about the globe-spanning appeal of American-style tap dance.
It's not to do with the way they look or act - I'm not a fan of the many tattoos they've had since hitting worldwide fame and a couple of them look like they could do with a good wash and haircut - but it's hard for me not to enjoy their infectiously pop-py music that I've always had a weakness for.
Roger was always infectiously happy and friendly to everyone he met.