7-letter words containing s
- apsidal — of an apse or apsis
- apsides — Astronomy. either of two points in an eccentric orbit, one (higher apsis) farthest from the center of attraction, the other (lower apsis) nearest to the center of attraction.
- aptness — inclined; disposed; given; prone: too apt to slander others.
- apyrase — any of various enzymes that catalyse the hydrolysis of adenosine triphosphate, yielding a phosphate and energy
- aquabis — (chemistry, in combination) Containing two molecules of water as a ligand.
- aqueous — In chemistry, an aqueous solution or cream has water as its base.
- aquinas — Saint Thomas. 1225–74, Italian theologian, scholastic philosopher, and Dominican friar, whose works include Summa contra Gentiles (1259–64) and Summa Theologiae (1267–73), the first attempt at a comprehensive theological system. Feast day: Jan 28
- arabist — An Arabist is a person who supports Arab interests or knows a lot about the Arabic language.
- arachis — any of various plants native to South America and belonging to the genus Arachis of the family Fabaceae, the most famous of which is the peanut (Arachis hypogaea)
- aragats — extinct volcano in NW Armenia: 13,435 ft (4,095 m)
- araised — Simple past tense and past participle of araise.
- aralias — Plural form of aralia.
- arapesh — a member of a Papuan people of Papua New Guinea.
- arausio — a town in SE France: a small principality in the Middle Ages, the descendants of which formed the House of Orange. Pop: 27 989 (1999)
- arbores — Plural form of arbor.
- arbours — Plural form of arbour.
- arbutus — any of several temperate ericaceous shrubs of the genus Arbutus, esp the strawberry tree of S Europe. They have clusters of white or pinkish flowers, broad evergreen leaves, and strawberry-like berries
- arcades — Plural form of arcade.
- archbsd — (operating system) 4.4 BSD-Lite for the Acorn Archimedes.
- archers — Plural form of archer.
- archest — Superlative form of arch.
- archeus — the spirit or force which Paracelsians believed dwelt in, and presided over, all living things
- archons — Plural form of archon Chief magistrates of ancient Athens.
- archsee — archbishopric.
- arcsech — (mathematics) The inverse hyberbolic secant function.
- arcsecs — Plural form of arcsec.
- arcsine — the function the value of which for a given argument between –1 and 1 is the angle in radians (between –π/2 and π/2), the sine of which is that argument: the inverse of the sine function
- arctics — high, warm, waterproof overshoes, usually with buckles
- ardours — Plural form of ardour.
- arduous — Something that is arduous is difficult and tiring, and involves a lot of effort.
- arenose — sandy
- arenous — sandy
- arensky — Anton Stepanovich [uhn-tawn styi-pah-nuh-vyich] /ʌnˈtɔn styɪˈpɑ nə vyɪtʃ/ (Show IPA), 1861–1906, Russian composer.
- areolas — a ring of color, as around the human nipple.
- areoles — Plural form of areola.
- argalis — Plural form of argali.
- argasid — any of the numerous ticks of the family Argasidae, comprising the soft ticks.
- argolis — a department and ancient region of Greece, in the NE Peloponnese. Capital: Nauplion. Pop: 102 392 (2001). Area: 2261 sq km (873 sq miles)
- arguers — Plural form of arguer.
- argulus — any of various parasites of the genus Argulus of the family Argulidae which affect fish and are a major threat to their health.
- argyles — Plural form of argyle.
- arillus — an aril
- ariosos — Plural form of arioso.
- ariosto — Ludovico (ludoˈviːko). 1474–1533, Italian poet, famous for his romantic epic Orlando Furioso (1516)
- ariseth — (archaic) Third-person singular present simple form of 'arise'.
- arising — to get up from sitting, lying, or kneeling; rise: He arose from his chair when she entered the room.
- aristae — Plural form of arista.
- aristos — Plural form of aristo.
- arkosic — related to arkose
- armadas — Plural form of armada.