7-letter words containing a, d, i, o
- cabildo — a municipal council, or a town hall, in Latin America
- cactoid — resembling a cactus
- candiot — of or relating to Candia (Iráklion) or Crete; Cretan
- cardio- — heart
- carotid — either one of the two principal arteries that supply blood to the head and neck
- coadmit — to admit together
- codeina — a white, crystalline, slightly bitter alkaloid, C 18 H 21 NO 3 , obtained from opium, used in medicine chiefly as an analgesic or sedative and to inhibit coughing.
- codical — Of or pertaining to a code or codex.
- codilla — the coarse parts of flax and hemp
- conidia — (in fungi) an asexual spore formed by abstriction at the top of a hyphal branch.
- cordial — Cordial means friendly.
- corrida — a public program in which a series of bullfights, usually six, are held
- cotidal — (of a line on a tidal chart) joining points at which high tide occurs simultaneously
- daboias — Plural form of daboia.
- dacoits — Plural form of dacoit.
- dacoity — (in India and Myanmar) a robbery by an armed gang
- daikons — Plural form of daikon.
- daimoku — (in Nichiren Buddhism) the words nam myoho renge kyo ('devotion to the Lotus Sutra') chanted to the Gohonzon
- daimons — Plural form of daimon.
- daimyos — Plural form of daimyo.
- dakoity — dacoity.
- dariole — a small cup-shaped mould used for making individual sweet or savoury dishes
- dazibao — (in China) a wallposter.
- deasoil — deasil
- deloria — Vine, (Jr.) [vahyn] /vaɪn/ (Show IPA), 1933–2005, U.S. writer.
- diablos — Plural form of diablo.
- diabolo — a game in which one throws and catches a spinning top on a cord fastened to two sticks held in the hands
- diadrom — the complete course or oscillation of something, especially of a pendulum
- dialogs — Plural form of dialog.
- diamond — A diamond is a hard, bright, precious stone which is clear and colourless. Diamonds are used in jewellery and for cutting very hard substances.
- dianoia — perception and experience regarded as lower modes of knowledge
- diatoms — Plural form of diatom.
- diatron — an electrical circuit that uses diodes
- diazole — any organic compound whose molecules contain a pentagonal ring of three carbon atoms and two nitrogen atoms, esp imidazole (1,3-diazole) or pyrazole (1,1–diazole)
- diconal — a brand of dipanone, an opiate drug with potent analgesic properties: used to relieve severe pain
- digonal — of or relating to a symmetry operation in which the original figure is reconstructed after a 180° turn about an axis
- dilator — Anatomy. a muscle that dilates some cavity of the body.
- dionaea — the Venus's-flytrap.
- dioptra — Alternative form of diopter.
- diorama — a scene, often in miniature, reproduced in three dimensions by placing objects, figures, etc., in front of a painted background.
- dioxane — a colorless, flammable, liquid cyclic ether, C 4 H 8 O 2 , having a faint, pleasant odor: used chiefly in the varnish and silk industries and as a dehydrator in histology.
- diploma — a document given by an educational institution conferring a degree on a person or certifying that the person has satisfactorily completed a course of study.
- dipnoan — belonging or pertaining to the order Dipnoi, comprising the lungfishes.
- dipodal — (organic chemistry) Describing any compound in which two (of the same) functional groups are on two separate chains.
- dipolar — Physics, Electricity. a pair of electric point charges or magnetic poles of equal magnitude and opposite signs, separated by an infinitesimal distance.
- disavow — to disclaim knowledge of, connection with, or responsibility for; disown; repudiate: He disavowed the remark that had been attributed to him.
- doating — dote.
- domaine — a French estate on which wine is made
- domains — Plural form of domain.
- domical — domelike.