20-letter words containing h, a, l, o, b
- membranous labyrinth — an intricate combination of paths or passages in which it is difficult to find one's way or to reach the exit. Synonyms: maze, network, web.
- meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
- northern leaf blight — a disease of corn caused by the fungus Exsherohilum turcicum, characterized by elongate tan-gray elliptical spots with subsequent blighting and necrosis of leaves.
- para-dichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
- physical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- prothonotary warbler — a wood warbler, Protonotaria citrea, of the eastern U.S., having an orange-yellow head and underparts, and bluish-gray wings and tail.
- rough-legged buzzard — a buzzard, Buteo lagopus, of Europe, Asia, and North America, having feathers covering its legs
- royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
- saint john ambulance — an organization that provides first aid and first-aid training
- semiautobiographical — pertaining to or being a fictionalized account of an author's own life.
- set the ball rolling — to open or initiate (an action, discussion, movement, etc)
- spherical aberration — variation in focal length of a lens or mirror from center to edge, due to its spherical shape.
- tetrahydrocannabinol — a compound, C 21 H 30 O 2 , that is the physiologically active component in cannabis preparations (marijuana, hashish, etc.) derived from the Indian hemp plant or produced synthetically. Abbreviation: THC.
- the (whole) ballgame — the main or decisive factor, event, etc.
- the beautiful people — rich, fashionable people in international high society
- to be at loggerheads — to be in conflict
- to blow hot and cold — If someone blows hot and cold, they keep changing their attitude towards something, sometimes being very enthusiastic and at other times expressing no interest at all.
- to scrape the barrel — If you say that someone is scraping the barrel, or scraping the bottom of the barrel, you disapprove of the fact that they are using or doing something of extremely poor quality.
- tribromoacetaldehyde — bromal.
- war of the rebellion — American Civil War.
- white bush (scallop) — a variety of summer squash having a saucer-shaped white fruit, scalloped around the edges
- wilson cloud chamber — cloud chamber.
- yellow-breasted chat — an American warbler, Icteria virens, having a yellow throat and breast and greenish-brown upper parts and noted for imitating the songs of other species.