13-letter words containing a, b, e, s, i
- bacteriolysis — the destruction or disintegration of bacteria
- bacterioscopy — the examination of bacteria with a microscope.
- bacteriostats — Plural form of bacteriostat.
- baily's beads — the brilliant points of sunlight that appear briefly around the moon, just before and after a total eclipse
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- balmer series — a series of lines in the hydrogen spectrum, discovered by Johann Jakob Balmer (1825–98) in 1885
- balsamiferous — yielding or producing balsam
- baltic shield — the wide area of ancient rock in Scandinavia
- baltic states — the republics of Estonia, Latvia, and Lithuania, which became constituent republics of the former Soviet Union in 1940, regaining their independence in 1991
- banana spider — a large, yellowish, tropical crab spider (Heteropoda venatoria) occasionally found in bunches of bananas shipped to the Temperate Zones
- banderilleros — Plural form of banderillero.
- bandspreading — an additional tuning control in some radio receivers whereby a selected narrow band of frequencies can be spread over a wider frequency band, in order to give finer control of tuning
- banister back — a back of a chair or the like, usually having semicircular spindles between the top rail and the cross rail or seat.
- bank of issue — a bank, as a Federal Reserve Bank, empowered by a government to issue currency.
- banker's bill — a banknote
- banking house — a more formal term for a bank
- bantamweights — Plural form of bantamweight.
- barber's itch — any of various fungal infections of the bearded portion of the neck and face
- barley stripe — a disease of barley, characterized by blighted heads and chlorotic, brown, or frayed stripes on the leaves, caused by a fungus, Helminthosporium gramineum.
- barnsbreaking — noisy and exuberant activity; boisterous mischief-making
- barred spiral — a spiral galaxy in which the arms originate at the ends of a bar-shaped nucleus
- barrier-nurse — to tend (infectious patients) in isolation, to prevent the spread of infection
- barristership — the office of a barrister
- base hospital — a hospital serving a large rural area
- baseline cost — the projected cost for an undertaking at the time it is budgeted
- basic english — a simplified form of English, proposed by C. K. Ogden and I. A. Richards, containing a vocabulary of approximately 850 of the commonest English words, intended as an international language
- basic plumage — the plumage assumed by an adult bird at its complete, usually annual, molt.
- basic process — Military. basic training. a soldier or airman receiving basic training.
- basidiomycete — any fungus of the phylum Basidiomycota (formerly class Basidiomycetes), in which the spores are produced in basidia. The group includes boletes, puffballs, smuts, and rusts
- basidiospores — Plural form of basidiospore.
- basket dinner — a group social gathering, as of church members, to which participants contribute casseroles or other dishes to share.
- bass clarinet — a clarinet with the lowest range, in the octave below the B-flat clarinet
- bass-baritone — a singer or voice in the bass range with baritone qualities
- bassenthwaite — a lake in NW England, in Cumbria near Keswick. Length: 6 km (4 miles)
- basso rilievo — bas-relief
- basso-relievo — bas-relief
- bastard eigne — the first-born illegitimate son of parents whose second son was legitimate.
- bastard title — half title (def 1).
- bastard-title — Also called bastard title. the first printed page of certain books, appearing after the end papers and before the title page and containing only the title of the book.
- battlecruiser — A large warship of a type built in the early 20th century, carrying similar armament to a battleship but faster and more lightly armored.
- be upstanding — (in a court of law) a direction to all persons present to rise to their feet before the judge enters or leaves the court
- beam splitter — a system that divides a beam of light, electrons, etc, into two or more paths
- bearing sword — a large sword carried for its owner by a squire or servant because of its size.
- beat sb to it — If you intend to do something but someone beats you to it, they do it before you do.
- beautifulness — having beauty; possessing qualities that give great pleasure or satisfaction to see, hear, think about, etc.; delighting the senses or mind: a beautiful dress; a beautiful speech.
- beaux esprits — bel esprit
- beaux-esprits — plural of bel-esprit.
- bedside table — a small table beside a bed
- beehive state — Utah (used as a nickname).
- beggar's-lice — any of several plants, esp the stickseed, having small prickly fruits that adhere to clothing, fur, etc