15 Letter Words that Start with "B"

206 words that are 15 letters long and start with "B".

2 syllables 15 Letter Words that Start with "B"

• bloodthirstiest
• bougainvillaeas
• bronchiectasias

3 syllables 15 Letter Words that Start with "B"

• basiophthalmous
• bioacousticians
• biocontainments
• blackguarderies
• blacksmitheries
• blasphemousness
• blockheadedness
• boundlessnesses
• bounteousnesses
• boussingaultite
• brachioplasties
• brainlessnesses
• branchiocardiac
• branchiopallial
• branchiostegous
• braunschweigers
• breathabilities
• breitschwantzes
• bremsstrahlungs
• brillianteerers
• brillianteering
• brilliantnesses
• brobdingnagians
• bronchographies
• bronchoplasties

4 syllables 15 Letter Words that Start with "B"

• bacillariaceous
• backplasterings
• backscatterings
• bacteriophagies
• bacterioscopies
• balneotherapies
• barbarousnesses
• basiophthalmite
• batrachophagous
• beauteousnesses
• believabilities
• bibliothecarial
• bibliotherapies
• bidialectalisms
• bidialectalists
• biliopancreatic
• billionairesses
• bioautographies
• bioclimaticians
• biomicroscopies
• biophysiologies
• biopsychologies
• biopsychosocial
• bioremediations
• biospeleologies
• biostatistician
• biotechnologies
• bittersweetness
• blastocladiales
• blaxploitations
• blindfoldedness
• bloodguiltiness
• bloodlessnesses
• boedelscheiding
• bouleversements
• bountifulnesses
• bourgeoisifying
• boustrophedonic
• brachioradiales
• brachioradialis
• brachistochrone
• brachycephalies
• brachydactylous
• brachydiagonals
• brachydodromous
• brachyphalangia
• brachysclereids
• brachytherapies
• branchiobdellid
• branchiocranium
• branchiostegals
• branchiostegite
• branchiostomids
• breechesflowers
• brochidodromous
• bronchoalveolar
• bronchoscopists
• buccopharyngeal
• bumptiousnesses

5 syllables 15 Letter Words that Start with "B"

• bacteriologists
• bacterioprotein
• bacteriotropins
• balanophoraceae
• balanopreputial
• balladmongering
• barometrographs
• barothermograph
• basidiomycetous
• bastardizations
• bathyclinograph
• bathythermogram
• batrachospermum
• beautifications
• beautifulnesses
• behaviouralists
• behaviouristics
• belongingnesses
• benightednesses
• bennettitaceous
• benzanthracenes
• benzodiazepines
• benzosulphimide
• benzothiophenes
• benzoylecgonine
• benzoylglycines
• bewitchednesses
• bibliographical
• bibliophilistic
• bibliotherapist
• bifidobacterial
• bilophodontisms
• bioastronautics
• biobibliography
• bioclimatograph
• biodegradations
• biodemographers
• bioengineerings
• biogeochemicals
• biogeochemistry
• biogeographical
• bioluminescence
• biophysiography
• biophysiologist
• biopsychologist
• bioregionalisms
• bioregionalists
• biorepositories
• biospeleologist
• biostratigraphy
• biosynthesising
• biosynthesizing
• biosystematists
• biotechnologist
• bipartisanships
• bisegmentations
• bisphosphonates
• blamelessnesses
• blameworthiness
• blastoneuropore
• blennorrhagicum
• blephariglottis
• bolshevizations
• bothriocephalus
• bowdlerizations
• brachioganoidei
• brachycephalids
• brachycephalism
• brachydactylism
• brackebuschites
• brassicasterols
• brompheniramine
• bronchiolitises
• bronchodilation
• bronchodilators
• bronchostenoses
• bronchostenosis
• brontotheriidae
• brotherlinesses
• brownmillerites
• bultfonteinites
• bureaucratising
• bureaucratizing
• businesspersons
• buttgenbachites

6 syllables 15 Letter Words that Start with "B"

• bacillariophyta
• bacteriological
• bacteriotherapy
• balaenopteridae
• balanoposthitis
• barefacednesses
• basidiolichenes
• bathymasteridae
• bathymetrically
• bathypitotmeter
• benzopurpurines
• bidirectionally
• bifidobacterium
• binomenclatures
• bioaccumulating
• bioaccumulation
• bioaccumulative
• bioanthropology
• bioavailability
• bioequivalences
• bioinsecticides
• biomathematical
• biomechanically
• biophotogeneses
• biophotogenesis
• biosociological
• bipolarizations
• bituminizations
• brachycatalexis
• bromometrically
• bronchodilatory
• bulbocavernosus

7 syllables 15 Letter Words that Start with "B"

• basidiomycotina
• bicollaterality