12-letter words containing a, d, h, o
- north island — the northernmost principal island of New Zealand. 44,281 sq. mi. (114,690 sq. km).
- not half bad — very good
- note of hand — promissory note.
- now and then — occasionally
- octahedrally — in an octahedral manner
- odd-man rush — an attacking move when the defence is outnumbered by the opposing team
- odontography — a treatise regarding the teeth
- odontophobia — an unnatural dread or terror of teeth
- odontophoran — a member of the family Odontophora
- old catholic — a member of any of several European churches professing to be truly Catholic but rejecting certain modern Roman Catholic doctrines, dogmas, and practices, especially the dogma of papal infallibility.
- old faithful — one of the best known geysers of Yellowstone National Park.
- old-womanish — Sometimes Offensive. having characteristics considered typical of an old woman, as excessive fussiness or timidity.
- oldfashioned — Rare spelling of old-fashioned.
- on shipboard — on board a ship
- on the cadge — engaged in cadging
- on the cards — likely
- onion-shaped — bulb-shaped; shaped like an onion
- onward march — the continuing, advancing or improving movement (of situation, etc)
- open-hearted — unreserved, candid, or frank: open-hearted advice.
- orchard bush — open savanna country with occasional trees and scrub, as found north of the W African forest belt
- orchestrated — Simple past tense and past participle of orchestrate.
- orchidaceous — belonging to the plant family Orchidaceae.
- orchidomania — an obsession with or passion for orchids
- ormond beach — a town in NE Florida.
- orthopaedics — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- orthopaedist — Alternative spelling of orthopedist.
- orthopedical — (American spelling) Alternative form of orthopaedical.
- orthovanadic — relating to orthovanadates
- outlandishly — In an outlandish manner.
- overachieved — Simple past tense and past participle of overachieve.
- pachydermous — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- paedomorphic — showing signs of paedomorphism
- paedophiliac — an adult who is sexually attracted to young children.
- parahydrogen — the form of molecular hydrogen in which the nuclei of the two hydrogen atoms contained in the molecule have spins in opposite directions.
- parasphenoid — a bone next to the sphenoid bone in the skull of some animals
- pentahydroxy — (of a molecule) containing five hydroxyl groups.
- phosphamidon — a systemic and contact insecticide, C 1 0 H 1 9 ClNO 5 P, used against beetles, aphids, mites, and other crop pests.
- phosphatidic — of or relating to a phosphatide
- phosphatidyl — an atom or group of atoms containing one or more unpaired electrons derived from a phosphatide
- photo spread — a picture spread. See under spread (def 33).
- photo-stated — a camera for making facsimile copies of documents, drawings, etc., in the form of paper negatives on which the positions of lines, objects, etc., in the originals are maintained.
- photocathode — a cathode, typically of a cesium or sodium compound, having the property of emitting electrons when activated by light or other radiation.
- photodynamic — the science dealing with light and its effects on living organisms.
- phytonadione — vitamin K1.
- pidyon haben — the rite of relieving the first male child born to parents not descended from Aaron or Levi of certain religious obligations by redeeming him from a member of the priestly class, celebrated 30 days after the child's birth.
- place-holder — Mathematics, Logic. a symbol in an expression that may be replaced by the name of any element of the set.
- plagiohedral — (of a crystal) having faces arranged obliquely in a helix.
- pointed arch — an arch having a pointed apex.
- poland china — one of an American breed of black hogs having white markings.
- polythiazide — a substance, C 1 1 H 1 3 ClF 3 N 3 O 4 S 3 , used as a diuretic in the management of edema and hypertension.