B cells, unlike the other 2 classes of lymphocytes, T cells and natural killer cells, express B cell receptors (BCRs) on their cell membrane. BCRs allow the B cell to bind a specific antigen, against which it will initiate an antibody response.
Full Definition of INFEST. transitive verb. 1. 2. : to live in or on as a parasite. â inÂ·fesÂ·tant \-Ëfes-tÉnt\ noun. â inÂ·fesÂ·taÂ·tion \Ëin-Ëfes-ËtÄ-shÉn\ noun. â inÂ·festÂ·er \in-Ëfes-tÉr\ noun. See infest defined for English-language learners.ull Definition of INFEST. transitive verb. 1. 2. : to live in or on as a parasite. â inÂ·fesÂ·tant \-Ëfes-tÉnt\ noun. â inÂ·fesÂ·taÂ·tion \Ëin-Ëfes-ËtÄ-shÉn\ noun. â inÂ·festÂ·er \in-Ëfes-tÉr\ noun. See infest defined for English-language learners.
Catfishing means something in terms of urban language. What it means is that someone is trying to be someone they really aren't using a social media website.r the spoilt countryside--either way it's rural. The word URBAN means like a big or huge city or town. It is a word, the opposite or rural. Rural may refer to a comparatively less populated area where the distribution of population may be more spread out. An urban area is a city, town.