12-letter words containing h, a, t, r
- autographing — Present participle of autograph.
- automorphism — the practice of seeing others as having the same characteristics as oneself
- autorhythmic — That generates its own rhythm.
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- azathioprine — a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
- azithromycin — A macrolide antibiotic derived from erythromycin.
- b'nai b'rith — a Jewish fraternal organization founded in New York in 1843, having moral, philanthropic, social, educational, and political aims
- baby brother — a younger brother
- bach trumpet — a modern small three-valved trumpet for playing clarino passages in Bach's music
- bachelorette — A bachelorette is a woman who has never married.
- back stretch — the straight part of a race track opposite the part leading to the finish line.
- bag snatcher — a thief whose main tactic is to grab women's handbags and run off with them
- bagworm moth — any moth of the family Psychidae
- bairnsfather — Bruce. 1888–1959, British cartoonist, born in India: best known for his cartoons of the war in the trenches during World War I
- baluchithere — a hornless rhinoceros of the extinct genus Baluchitherium that inhabited central Asia during the Oligocene and early Miocene epochs: the largest land mammal known.
- bandersnatch — a fictional creature created by Lewis Carroll in his poem Jabberwocky, and appearing also in The Hunting of the Snark and Through the Looking-Glass
- baraesthesia — the ability to sense pressure
- bashkirtseff — Marie, original name Marya Konstantinovna Bashkirtseva. 1858–84, Russian painter and diarist who wrote in French, noted esp for her Journal (1887)
- basket chair — a chair made of wickerwork; a wicker chair
- basque shirt — a knitted pullover shirt having a crew neck, long or short sleeves, and a pattern of horizontal stripes.
- bated breath — to moderate or restrain: unable to bate our enthusiasm.
- bathing wrap — a loose robe to wear after bathing, often made of towelling
- bathochromic — denoting or relating to a shift to a longer wavelength in the absorption spectrum of a compound
- bathtub race — a sailing race between bathtubs fitted with outboard motors
- bathygraphic — of or relating to the depths of the ocean
- bathyspheres — Plural form of bathysphere.
- baton charge — A baton charge is an attacking forward movement made by a large group of policemen carrying batons.
- battleworthy — capable of engaging in combat; ready for battle: a decline in the nation's battleworthy forces.
- bean-shooter — peashooter.
- beat the air — to strike violently or forcefully and repeatedly.
- beat the rap — If you beat the rap, you avoid being blamed for something wrong that you have done.
- beaver cloth — beaver1 (def 8).
- beech marten — stone marten.
- beefheartian — of or recalling the music of Captain Beefheart and his Magic Band, an avant-garde rock/blues band (1966–1982); incorporating strange rhythms, free jazz elements, bizarre lyrics, and growling vocals
- bell heather — an ericaceous shrub, Erica cinerea
- belteshazzar — the Babylonian name given to Daniel. Dan. 1:7.
- beth midrash — a place where Jews gather to study the Talmud and other religious writings; a small synagogue.
- bhakti-marga — any of the three ways to salvation, which are those of devotion to certain gods (bhakti-marga) of study (jnana-marga) and of actions (karma-marga)
- bird watcher — a person who identifies and observes birds in their natural habitat as a recreation.
- bird-watcher — A bird-watcher is a person whose hobby is watching and studying wild birds in their natural surroundings.
- birth family — one's biological parents and siblings, as contrasted with one's adoptive family.
- birth father — a biological mother (birth mother) or biological father (birth father) a biological parent.
- birth parent — a biological mother (birth mother) or biological father (birth father) a biological parent.
- birth trauma — an emotional shock caused by being born.
- birthday boy — the boy or man whose birthday is being celebrated
- blabbermouth — a person who talks too much or indiscreetly
- blackhearted — wicked; evil
- blastosphere — blastula
- blatherskite — a talkative silly person
- bletheration — nonsense!