Bdelloidea /ˈdɛlɔɪdiə/ (Greek βδελλα, bdella, "leech-like") is a class of rotifers found in freshwater habitats all over the world.
Bdellium /ˈdɛliəm/ (Hebrew bedolach), also bdellion, is a semi-transparent oleo-gum resin extracted from Commiphora wightii and from Commiphora africana trees growing in Ethiopia, Eritrea and sub-saharan Africa.
Bdellodes is a genus of mites, including the species Bdellodes lapidaria.
Bdellovibrio is a genus of Gram-negative, obligate aerobic bacteria. One of the more notable characteristics of this genus is that members parasitize other Gram-negative bacteria by entering into their periplasmic space and feeding on the biopolymers, e.g.
Bdebba بدبا is a village in Koura District of Lebanon. It has a Maronite and Greek Orthodox population.
Bdelygmia, deriving from a Greek word meaning "filth" or "nastiness", is a technique used in rhetoric to express hatred of a person, word or action through a series of criticisms.
Bangladesh (/ˌbæŋɡləˈdɛʃ/; /ˌbɑːŋɡləˈdɛʃ/; বাংলাদেশ, pronounced: [ˈbaŋlad̪eʃ], lit. "The country of Bengal"), officially the People's Republic of Bangladesh (গণপ্রজাতন্ত্রী বাংলাদেশ Gônôprôjatôntri Bangladesh), is a sovereign state in South Asia.
Bdellocephala is a genus of freshwater triclad that inhabits different regions of Eurasia.
The Bdellovibrionaceae are a family of Proteobacteria. They include genera, such as Bdellovibrio and Vampirovibrio, which are unusual parasites that enter other bacteria.
Bdellomicrovirus is a genus of viruses, in the family Microviridae, in the subfamily Gokushovirinae. Bdellovibrio bacteria serve as natural hosts.