| ACRIDNESSES | • ACRIDNESS n. the quality of being acrid. | 
| ACRIFLAVINE | • acriflavine n. (Medicine) An antimicrobial flavonoid dye derived from acridine. • ACRIFLAVINE n. an antiseptic, also ACRIFLAVIN. | 
| ACRIFLAVINS | • ACRIFLAVIN n. an antiseptic, also ACRIFLAVINE. | 
| ACRIMONIOUS | • acrimonious adj. (Archaic) Harsh and sharp, or bitter and not pleasant to the taste; acrid, pungent. • acrimonious adj. (Figuratively) Angry, acid, and sharp in delivering argumentative replies: bitter, mean-spirited, sharp… • ACRIMONIOUS adj. caustic, biting, or rancorous esp. in feeling, language, or manner. | 
| ACROBATISMS | • acrobatisms n. Plural of acrobatism. • ACROBATISM n. the art of the acrobat. | 
| ACROCARPOUS | • acrocarpous adj. (Botany) Developing the archegonium on the summit of the primary stem; fruiting at tips, in the manner of mosses. • ACROCARPOUS adj. of mosses, having the archegonia at the top of the stem. | 
| ACROCENTRIC | • acrocentric adj. (Genetics) (of a chromosome) Having the centromere very near to one end, and thus having a long arm… • acrocentric n. A chromosome that has the centromere very near to one end, and thus has a long arm, and a very short arm. • ACROCENTRIC n. a rod-shaped chromosome. | 
| ACRODROMOUS | • acrodromous adj. (Botany) Alternative form of acrodrome. • ACRODROMOUS adj. of the veins in a leaf, running parallel to the edges of the leaf and fusing at the tip, also ACRODROME. | 
| ACROMEGALIC | • acromegalic adj. (Pathology) Pertaining to or characteristic of acromegaly. • acromegalic n. (Pathology) A person affected by acromegaly. • ACROMEGALIC adj. relating to acromegaly. | 
| ACRONICALLY | • ACRONICAL adv. occurring at nightfall or sunset, (esp. of the rising or setting of stars), also ACRONIC, ACRONYCAL, ACRONYCHAL. | 
| ACRONYCALLY | • acronycally adv. In an acronycal manner; rising when the sun sets, and vice versa. • ACRONYCAL adv. occurring at nightfall or sunset, (esp. of the rising or setting of stars), also ACRONIC, ACRONICAL, ACRONYCHAL. | 
| ACRONYMANIA | • acronymania n. The enthusiastic creation and use of acronyms. • ACRONYMANIA n. a craze for acronyms. | 
| ACROPETALLY | • acropetally adv. In an acropetal manner. • ACROPETAL adv. in the direction of the tip of the plant. | 
| ACROPHOBIAS | • acrophobias n. Plural of acrophobia. • ACROPHOBIA n. fear of heights. | 
| ACROPHOBICS | • acrophobics n. Plural of acrophobic. • ACROPHOBIC n. one suffering from acrophobia. | 
| ACROPHONIES | • acrophonies n. Plural of acrophony. • ACROPHONY n. the use of a word starting with a letter of the alphabet as the name of the letter. | 
| ACROPOLISES | • acropolises n. Plural of acropolis. • ACROPOLIS n. (Greek) a citadel, esp. that of Athens. | 
| ACRYLAMIDES | • acrylamides n. Plural of acrylamide. • ACRYLAMIDE n. an amide used in the manufacture of synthetic textile fibers. |