11-letter words starting with ac
- achaemenian — of or relating to the Achaemenids or their language, as recorded in cuneiform inscriptions.
- acharnement — (archaic) Savage fierceness; ferocity.
- achievement — An achievement is something which someone has succeeded in doing, especially after a lot of effort.
- achlamydate — not chlamydate; having neither mantle nor pallium.
- achondrites — Plural form of achondrite.
- achondritic — (geology) Of or pertaining to achondrite, a type of stony meteorite.
- achromatism — the condition or quality of being achromatic; lack of color
- achromatize — to make achromatic; to remove colour from
- achromatous — having little or no colour or less than is normal
- acid number — a number indicating the amount of free acid present in a substance, equal to the number of milligrams of potassium hydroxide needed to neutralize the free fatty acids present in one gram of fat or oil
- acid reflux — the regurgitation of stomach acid into the oesophagus, causing heartburn
- acid-loving — (of a plant) requiring a pH of 4.5 to 5.5 for optimal growth.
- acid-washed — (of a denim garment) processed with a bleach solution so that the color becomes faded and grayish.
- acidanthera — any plant of the African cormous genus Acidanthera, cultivated for its graceful tubular white and red or white and purple flowers, often scented: family Iridaceae
- acidimeters — Plural form of acidimeter.
- acidimetric — (chemistry) Describing a titration in which the titrant is an acid.
- acidophilic — easily stained with acid dyes
- acidophilus — a lactic-acid-producing bacterium primarily found in live yoghurt, useful in restoring bacterial balance in the intestine
- acidulating — Present participle of acidulate.
- acidulation — to make somewhat acid.
- acidulously — In a acidulous manner; in a mildly sour or acid way.
- acinaciform — (of leaves) shaped like a scimitar; curved
- acknowledge — If you acknowledge a fact or a situation, you accept or admit that it is true or that it exists.
- acmesthesia — awareness of sharp points through the sense of touch without experiencing pain.
- acoelomates — Plural form of acoelomate.
- acorn chair — a Jacobean chair having a crossrail with acorn-shaped pendants.
- acorn clock — a mantel clock of the first half of the 19th century, having the upper part of the case shaped with a double ogee curve to resemble an acorn.
- acorn spoon — a spoon having an acornlike ornament at the end of its stem.
- acorn sugar — quercitol.
- acorn valve — a small electronic valve, approximately acorn-shaped with small closely-spaced electrodes, used in ultrahigh-frequency applications
- acoustician — an expert in acoustics
- acquaintant — (rare) An acquaintance.
- acquainting — to make more or less familiar, aware, or conversant (usually followed by with): to acquaint the mayor with our plan.
- acquiescent — Someone who is acquiescent is ready to agree to do what someone wants, or to accept what they do.
- acquiescing — to assent tacitly; submit or comply silently or without protest; agree; consent: to acquiesce halfheartedly in a business plan.
- acquiesence — A state or instance of acquiescing or passively accepting something, without necessarily consenting to it.
- acquirement — an acquiring or being acquired
- acquisition — If a company or business person makes an acquisition, they buy another company or part of a company.
- acquisitive — If you describe a person or an organization as acquisitive, you do not approve of them because you think they are too concerned with getting new possessions.
- acquisitory — tending or seeking to acquire and own, often greedily; eager to get wealth, possessions, etc.: our acquisitive impulses; acquisitive societies.
- acquittance — a release from or settlement of a debt, etc
- acraldehyde — acrolein.
- acriflavine — a brownish or orange-red powder used in medicine as an antiseptic and disinfectant. Formula: C14H14N3Cl
- acrimonious — Acrimonious words or quarrels are bitter and angry.
- acroamatics — Esoteric lectures.
- acrocarpous — (of mosses) having clustered upright stems and the reproductive parts borne at the tip of a stem
- acrocentric — (of a chromosome) having the centromere at one end
- acrocephaly — oxycephaly
- acrochordon — (medicine) A soft, pedunculated or pensile wart, consisting of myomatous or edematous fibrous tissue, often found on the neck or eyelids of elderly persons.
- acrocinesia — (pathology) Excessive movement of the limbs.