Diapsid skulls have one large hole in the front and two smaller holes in the back for different brain functions. Birds and reptiles have diapsid skulls.
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According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 100 words with the pattern -IA----. That is, seven letter words with 2nd letter I and 3rd letter A. In alphabetical order, they are: bialies biasing biassed biasses biaxial diabase diables diabolo diacids diadems diadrom diagram diagrid dialect dialers dialing dialist dialled diallel dialler dialogs dialyse dialyze diamide diamine diamins diamond diandry dianoia diapase diapers diapirs diapsid diarchy diarial diarian diaries diarise diarist diarize diastem diaster diatoms diatron diaxons diazine diazins diazoes diazole fiacres fiancee fiances fiaschi fiascos fiating fiaunts giantly giantry giaours giardia kiaughs liaised liaises liaison lianoid liatris miaoued miaowed miasmal miasmas miasmic miauled niacins piaffed piaffer piaffes pianino pianism pianist piarist piasaba piasava piaster piastre piazzas rialtos riantly sialids sialoid sialons siamang siamese siameze tiaraed viaduct vialful vialing vialled viatica viators
divideddreadeddresseddraineddevoteddiscorddiscarddefaceddefineddefrauddabbled, daddled, daggled, dagwood, daisied, dallied, damaged, dandled, dangled, dappled, darkled, dartled, dastard, daunted, davened, dawdled, dazzled, deaired, deashed, debased, debated, debeard, debited, deboned, debuted, decapod, decayed, decided, decoded, decoyed, decreed, decried, deduced, defaced, defamed, defiled, defined, defraud, defused, defuzed, degreed, deified, deigned, delated, delayed, deleted, delimed, deltoid, deluded, deluged, demigod, demised, demoded, demoted, denimed, denoted, dentoid, denuded, deodand, deponed, deposed, deputed, derided, derived, dermoid, descend, desexed, desired, desmoid, despond, detoxed, develed, deviled, devised, devoted, dewaxed, dialled, diamond, diapsid, dibbled, diddled, diehard, dighted, dilated, diluted, dimpled, dindled, diploid, dirtied, disband, discard, discoed, discoid, discord, dispend, distend, disused, ditched, dittoed, divided, divined, divvied, dizened, dizzied, dogsled, dogwood, dollied, donated, donnerd, doodled, doubled, doubted, douched, dovened, doweled, dowered, dozened, drabbed, drafted, dragged, drained, drammed, dratted, drawled, dreaded, dreamed, dredged, dressed, dribbed, drifted, drilled, dripped, drolled, dromond, drooled, drooped, dropped, drouked, drowned, drowsed, drubbed, drudged, drugged, drummed, dryland, duelled, duetted, dullard, dummied, dwarfed, dwelled, dyeweed, dyewood153 words
3-letter wordsadd, ado, ads, aid, ain, ais, ait, and, ane, ani, ant, ape, apt, asp, ate, dad, dap, dei, den, des, did, die, din, dip, dit, doe, don, dos, dot, eat, end, ens, eon, eta, ids, ins, ion, its, nae, nap, net, nip, nit, nod, nos, not, oat, odd, ode, ods, oes, one, ons, ope, ops, opt, ose, pad, pan, pap, pas, pat, pea, ped, pen, pep, pes, pet, pia, pie, pin, pip, pis, pit, pod, poi, pop, pot, psi, sad, sae, sap, sat, sea, sei, sen, set, sin, sip, sit, sod, son, sop, sot, spa, tad, tae, tan, tao, tap, tas, tea, ted, ten, tie, tin, tip, tis, tod, toe, ton, top4-letter wordsadds, adit, ados, aeon, aide, aids, ains, aits, ands, anes, anis, ante, anti, ants, aped, apes, apod, apse, ates, atop, dado, dads, dais, daps, date, dato, dead, dean, dens, dent, dido, died, dies, diet, dine, dins, dint, dips, dipt, dita, dite, dits, doat, does, doit, dona, done, dons, dopa, dope, dose, dost, dote, dots, east, eats, eddo, edit, ends, eons, epos, etas, etna, idea, ides, inia, inti, into, ions, iota, naoi, naos, nape, naps, neap, neat, nest, nets, nide, nidi, nipa, nips, nisi, nits, node, nodi, nods, noes, nope, nose, nota, note, oast, oats, odds, odea, odes, ones, oped, open, opes, opts, padi, pads, paid, pain, pane, pans, pant, paps, pase, past, pate, pats, pean, peas, peat, peds, pein, pend, pens, pent, peon, pepo, peps, peso, pest, pets, pian, pias, pied, pies, pina, pine, pins, pint, pion, pipe, pips, pita, pits, pods, poet, pois, pond, pone, pons, pope, pops, pose, post, pots, sade, sadi, said, sain, sand, sane, sate, sati, seat, send, sent, sept, seta, side, sine, sipe, site, snap, sned, snip, snit, snot, soap, soda, sone, spae, span, spat, sped, spin, spit, spot, step, stoa, stop, tads, tain, tans, taos, tape, taps, teas, teds, tend, tens, tepa, tide, tied, ties, tine, tins, tipi, tips, toad, tods, toea, toed, toes, tone, tons, tope, topi, tops5-letter wordsadept, adios, adits, adopt, aeons, aided, aides, anise, anode, anted, antes, antis, apods, aside, aspen, atone, dados, danio, dated, dates, datos, deads, deans, deist, dents, depot, didie, didos, didst, diets, dined, dines, dints, diode, dipso, ditas, dites, doats, doest, doits, donas, dopas, doped, dopes, dosed, doted, dotes, edits, eidos, entia, eosin, estop, etnas, ideas, idiot, inapt, indie, inept, inset, intis, iodid, iodin, iotas, napes, nappe, nates, neaps, neats, neist, netop, nided, nides, nipas, nisei, nitid, nodes, noise, nosed, noted, notes, oaten, odist, oidia, onset, opens, opine, opsin, opted, ostia, padis, paeon, pains, paint, paise, paned, panes, panto, pants, paseo, paste, pated, paten, pates, patin, patio, peans, peats, peins, pends, penis, peons, pepos, pesto, piano, pians, pieta, pinas, pined, pines, pinot, pinta, pinto, pints, pions, piped, pipes, pipet, pipit, piste, pitas, piton, podia, poets, poind, point, poise, ponds, pones, popes, posed, posit, psoae, psoai, saint, saned, sapid, sated, satin, sedan, senti, sepia, septa, seton, sided, siped, sited, sneap, snide, snipe, sonde, spade, spado, spaed, spait, spate, spean, spend, spent, spied, spine, spite, spode, stade, staid, stain, stand, stane, stead, stein, steno, stied, stipe, stoae, stoai, stone, stope, tains, taped, tapes, tapis, teiid, teind, tends, tenia, tepas, tepid, tided, tides, tinea, tined, tines, tipis, toads, tondi, toned, tones, toped, topes, topis, tsade, tsadi6-letter wordsadepts, adonis, adopts, anodes, append, appose, atoned, atones, dadoes, danios, dapped, dedans, depots, desand, despot, detain, didies, didoes, dinted, diodes, dipped, doated, doited, donate, donsie, dopant, idiots, indies, indite, inside, instep, iodate, iodide, iodids, iodine, iodins, ionise, isatin, napped, nappes, nappie, netops, nipped, noised, oddest, onside, opiate, opined, opines, paeons, pained, paints, pandit, panted, pantie, pantos, pasted, pastie, patens, patine, patins, patios, patois, pedant, pentad, pepsin, peptid, petnap, petsai, pianos, pietas, pineta, pinite, pinots, pintas, pintos, pipets, pipits, piston, pitied, pities, pitons, podite, poinds, pointe, points, poised, ponded, ponied, ponies, pontes, popsie, posted, postin, potpie, potsie, ptisan, sadden, sained, sanded, sapote, sapped, seniti, sipped, sippet, sniped, soaped, sodden, sopite, sopped, spaded, spined, spinet, spinto, spited, staned, stiped, stoned, stoped, tapped, teiids, teinds, tenias, teopan, tidied, tidies, tiepin, tineas, tineid, tipped, tisane, todies, topped7-letter wordsadenoid, adipose, adopted, appends, appoint, apposed, atonies, atopies, daisied, dandies, dapsone, dentoid, depaint, deposit, despond, destain, detains, diapsid, disdain, dispend, distain, distend, donated, donates, dopants, dopiest, edition, epinaoi, epinaos, indited, indites, inedita, inosite, instead, iodated, iodates, iodides, iodines, ionised, isatine, nappies, noddies, notepad, opiated, opiates, oppidan, paddies, painted, pandied, pandies, pandits, panties, patined, patines, pedants, pentads, peptids, petnaps, pianist, pinesap, piniest, pinites, pintado, pintoes, pipiest, podesta, podites, poinded, pointed, pointes, posited, potpies, sainted, sandpit, sapient, senopia, sinopia, sinopie, snapped, snipped, snippet, sopited, spinate, stained, stipend, stopped, teopans, tiepins, tineids, toadied, toadies, toddies, topside, topspin8-letter wordsaddition, adenitis, adenoids, antipode, antipope, appoints, apposite, astonied, dainties, dandiest, depaints, diopside, dioptase, dipodies, dippiest, editions, ideation, iodinate, nappiest, nippiest, notepads, oddities, oppidans, peponida, pintados, postpaid, saponite, satinpod, sedation, sedition9-letter wordsadditions, antipodes, antipopes, appointed, distained, ideations, iodinated, iodinates, peponidas, pintadoes, standpipe10-letter wordsdisappoint, inapposite12-letter wordsdisappointed