9-letter words containing a, d, o, p
- melampode — the black hellebore, Helleborus niger
- meropidan — any insectivorous bird of the family Meropidae
- misopedia — hatred of children, especially one's own.
- mold-warp — the common European mole, Talpa europaea.
- monopodia — a single main axis that continues to extend at the apex in the original line of growth, giving off lateral branches beneath in acropetal succession.
- mopboards — Plural form of mopboard.
- mophandle — The handle of a mop.
- mouse pad — mouse mat
- myriapods — Plural form of myriapod.
- name-drop — mention famous person to impress
- nauplioid — of or relating to the first stage in the development of a freshly hatched nauplius larva
- nonplaced — Not assigned a place.
- notopodia — Plural form of notopodium.
- octaploid — an organism that consists of eight groups or sets of chromosomes
- octapodic — (in poetic metre) having or consisting of eight feet
- oedipally — in an oedipal manner
- olympiads — Plural form of olympiad.
- omphaloid — resembling or similar to the navel
- on parade — on display
- ondograph — an instrument for graphically recording oscillatory variations, as in alternating currents.
- opalesced — Simple past tense and past participle of opalesce.
- opiniated — Obsolete form of opinionated.
- oppilated — Simple past tense and past participle of oppilate.
- outplayed — Simple past tense and past participle of outplay.
- outspread — spread out; stretched out: outspread arms.
- overpedal — to play (the piano) with excessive use of the pedals
- overplaid — a plaid pattern superimposed on another plaid
- packboard — a rigid wooden or metal frame, covered with fabric and having shoulder straps, to which equipment can be strapped for carrying.
- pad stone — a stone template.
- pademelon — any of several small Australian wallabies, especially of the genus Thylogale.
- paderborn — a city in North Rhine–Westphalia, in NW Germany.
- padre pio — a form of punishment shooting employed by paramilitaries in Northern Ireland in which the victim is shot through the palms of both hands
- padronism — a system of exploitative work controlled by a padrone
- paedology — the study of the character, growth, and development of children
- page mode — 1. (hardware, storage) See page mode DRAM. 2. (hardware) An operation mode of video terminals like the IBM 3270, in which the terminal only sends a completed input screen (page) to the host instead of sending each character as the keys are pressed.
- pair bond — the exclusive relationship formed between a male and a female, esp in some species of animals and birds during courtship and breeding
- pair-bond — (of a mating couple) to form and maintain a pair bond.
- palladous — of or containing bivalent palladium.
- paloverde — a spiny, desert shrub, Cercidium floridum, of the legume family, of the southwestern U.S. and Mexico, having green bark.
- pandation — the action of warping under weight
- panderous — resembling a pander
- paradoxal — having the nature of a paradox; self-contradictory.
- paradoxer — a proposer of a paradox
- paragould — a city in NE Arkansas.
- parapodia — one of the unjointed rudimentary limbs or processes of locomotion of many worms, as annelids.
- parasoled — having a parasol
- parboiled — to boil partially or for a short time; precook.
- pardalote — any of several tiny, short-tailed Australian songbirds of the genus Pardalotus, having short bills and most having brilliant plumage with gemlike specks on the dark upper parts.
- pariahdom — an outcast.
- parodical — having or of the nature of a parody.