9-letter words containing a, d, i, t
- anti-skid — intended to prevent vehicles from skidding
- antichild — Opposing children.
- anticodon — a three-base unit of genetic code contained in transfer RNA that corresponds to a codon region on messenger RNA, involved in genetic translation
- antideath — Preventing death.
- antidoron — consecrated bread
- antidotal — a medicine or other remedy for counteracting the effects of poison, disease, etc.
- antidotes — Plural form of antidote.
- antidraft — opposed to compulsory military service or conscription
- antifraud — acting against fraud
- antinodal — the region of maximum amplitude between two adjacent nodes in a standing wave.
- antinodes — Plural form of antinode.
- antipedal — (in a mollusk) located opposite the foot.
- antipodal — of or relating to diametrically opposite points on the earth's surface
- antipodes — People sometimes refer to Australia and New Zealand as the Antipodes.
- antiradar — (of a missile or other weapon) designed to destroy radar detection equipment
- antitrade — a wind in the upper atmosphere blowing in the opposite direction from and above the trade winds
- antiworld — a hypothetical or supposed world or universe composed of antimatter
- apartheid — Apartheid was a political system in South Africa in which people were divided into racial groups and kept apart by law.
- aphetized — (linguistics, of a word) Having undergone aphesis, the removal of an unstressed initial vowel.
- aphrodite — the goddess of love and beauty, daughter of Zeus
- apodictic — that can clearly be shown or proved; absolutely certain or necessarily true
- appetized — Simple past tense and past participle of appetize.
- appointed — If something happens at the appointed time, it happens at the time that was decided in advance.
- aptitudes — Plural form of aptitude.
- aquitards — Plural form of aquitard.
- aridities — being without moisture; extremely dry; parched: arid land; an arid climate.
- arillated — (of seeds) having an aril
- aristides — known as Aristides the Just. ?530–?468 bc, Athenian general and statesman, who played a prominent part in the Greek victories over the Persians at Marathon (490), Salamis (480), and Plataea (479)
- arthrodia — a joint
- arytenoid — denoting either of two small cartilages of the larynx that are attached to the vocal cords
- asafetida — a bad-smelling gum resin obtained from various Asiatic plants (genus Ferula) of the umbel family: it was formerly used to treat some illnesses or, in folk medicine, to repel disease
- asbestoid — Mineralogy. a fibrous mineral, either amphibole or chrysotile, formerly used for making incombustible or fireproof articles.
- ascidiate — of or relating to the tunicate molluscs of the genus Ascidium
- asiderite — an iron-free meteorite consisting of friable material.
- aspirated — (of a stop) articulated with some force, so that breath escapes with audible friction as the stop is released
- assiduity — constant and close application
- asteroids — Plural form of asteroid.
- astricted — Simple past tense and past participle of astrict.
- astringed — to compress; bind together; constrict.
- asyndetic — (of a catalogue or index) without cross references
- atrophied — exhibiting or affected with atrophy; wasted; withered; shriveled: an atrophied arm; an atrophied talent.
- attainder — (formerly) the extinction of a person's civil rights resulting from a sentence of death or outlawry on conviction for treason or felony
- attainted — Law. to condemn by a sentence or a bill or act of attainder.
- attending — having primary responsibility for a patient.
- attitudes — Plural form of attitude.
- attritted — to wear down (an opposing military force) by numerical superiority in troops or firepower.
- auctioned — Also called public sale. a publicly held sale at which property or goods are sold to the highest bidder.
- audiotape — Audiotape is magnetic tape which is used to record sound.
- auditable — able to be audited
- auditions — Plural form of audition.