n. An acetabulum; or about one eighth of a pint. [ Obs. ] Holland. [ 1913 Webster ]

a. Cup-shaped; saucer-shaped; acetabuliform. [ 1913 Webster ]

‖n. pl. [ NL. See Acetabuliferous. ] (Zool.) The division of Cephalopoda in which the arms are furnished with cup-shaped suckers, as the cuttlefishes, squids, and octopus; the Dibranchiata. See Cephalopoda. [ 1913 Webster ]

a. [ L. acetablum a little cup + -ferous. ] Furnished with fleshy cups for adhering to bodies, as cuttlefish, etc. [ 1913 Webster ]

a. [ L. acetabulum + -form. ] (Bot.) Shaped like a shallow cup; saucer-shaped; as, an acetabuliform calyx. Gray. [ 1913 Webster ]

‖n. [ L., a little saucer for vinegar, fr. acetum vinegar, fr. acere to be sour. ] [ 1913 Webster ]

1. (Rom. Antiq.) A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc. [ 1913 Webster ]

2. (Anat.) (a) The bony cup which receives the head of the thigh bone. (b) The cavity in which the leg of an insect is inserted at its articulation with the body. (c) A sucker of the sepia or cuttlefish and related animals. (d) The large posterior sucker of the leeches. (e) One of the lobes of the placenta in ruminating animals. [ 1913 Webster ]

n. [ Acetic + alcohol. ] (Chem.) A limpid, colorless, inflammable liquid from the slow oxidation of alcohol under the influence of platinum black. [ 1913 Webster ]

n. Acetic aldehyde. See Aldehyde. [ 1913 Webster ]

n. [ Acetyl + amide. ] (Chem.) A white crystalline solid, from ammonia by replacement of an equivalent of hydrogen by acetyl. [ 1913 Webster ]

n. 1. a white crystalline compound (HO.C6H4.NH.CO.CH3) used as an analgesic and also as an antipyretic. It has molecular weight 151.16. It is the active ingredient in the commercial analgesics Tylenol and Datril.
Syn. -- p-hydroxyacetanilide, p-acetamidophenol, N-acetyl-p-aminophenol, paracetamol, N-(4-hydroxyphenyl)acetamide It is sold under many trade names, and has been one of the most popular analgesics in the late 20th century. It is used in place of aspirin by people in whom aspirin causes undesirable side effects, such as stomach irritation or stomach bleeding. [ PJC ]

n. [ Acetyl + anilide. ] (Med., Chem.) An amide formed from aniline and an acetyl group (C6H5.NH.CO.CH3); it is a white crystalline compound used as an analgesic and also as an antipyretic. It has molecular weight 135.16. [ Written also acetanilid ] AS
Syn. -- phenylacetamide, N-phenylacetamide, antifebrin, antifebrine, acetylaminobenzene, acetylaniline [ 1913 Webster + WordNet 1.5 + AS ]

a. [ L. acetaria, n. pl., salad, fr. acetum vinegar, fr. acere to be sour. ] Used in salads; as, acetarious plants. [ 1913 Webster ]

n. [ L. acetaria salad plants. ] An acid pulp in certain fruits, as the pear. Grew. [ 1913 Webster ]

n. [ L. acetum vinegar, fr. acere to be sour. ] (Chem.) A salt formed by the union of acetic acid with a base or positive radical; as, acetate of lead, acetate of potash. [ 1913 Webster ]

a. Combined with acetic acid. [ 1913 Webster ]

n. 1. 1 filamentous or rod-shaped bacteria.
Syn. -- order Actinomycetales [ WordNet 1.5 ]

‖n. pl. [ NL., from L. cetus whale, Gr. &unr_;. ] (Zool.) An order of marine mammals, including the whales. Like ordinary mammals they breathe by means of lungs, and bring forth living young which they suckle for some time. The anterior limbs are changed to paddles; the tail flukes are horizontal. There are two living suborders: (a) The Mysticete or whalebone whales, having no true teeth after birth, but with a series of plates of whalebone [ see Baleen. ] hanging down from the upper jaw on each side, thus making a strainer, through which they receive the small animals upon which they feed. (b) The Denticete, including the dolphins and sperm whale, which have teeth. Another suborder (Zeuglodontia) is extinct. The Sirenia were formerly included in the Cetacea, but are now made a separate order. [ 1913 Webster ]

n. (Zool.) One of the Cetacea. [ 1913 Webster ]

a. (Zool.) Of or pertaining to the Cetacea. [ 1913 Webster ]

‖n. pl. [ NL., fr. &unr_; to appear. ] (Eccl. Hist.) Ancient heretics who held that Christ's body was merely a phantom or appearance. [ 1913 Webster ]

n. (Chem.) a salt or ester of oxalacetic acid.
Syn. -- oxaloacetate. [ WordNet 1.5 ]

n. A white crystalline compound used as an analgesic and also as an antipyretic.
Syn. -- acetanilide, acetanilid. [ WordNet 1.5 ]

n. (Chem.) An acetate containing an excess of the basic constituent. [ Webster 1913 Suppl. ]