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n. 1. 1 a family of fishes consisting of the surgeonfishes. fish family
Syn. -- family Acanthuridae [ WordNet 1.5 ]

n. 1. the family of arachnids of the order Acarina consisting of mites.
Syn. -- family Acaridae. [ WordNet 1.5 ]

n. [ See Acarus. ] (Zool.) One of a group of arachnids, including the mites and ticks. [ 1913 Webster ]

n. 1. 1 a family of birds consisting of the hawks; -- this family includes the Old World vultures; kites; harriers; and eagles.
Syn. -- family Accipitridae. [ WordNet 1.5 ]

prop. n. The natural family of fish including the sturgeons.
Syn. -- family Acipenseridae. [ WordNet 1.5 ]

{ a. Glandlike; glandular. [ 1913 Webster ]

n. 1. 1 coextensive with the order Aepyorniformes.
Syn. -- family Aepyornidae [ WordNet 1.5 ]

n. [ LL. affidavit he has made oath, perfect tense of affidare. See Affiance, Affy. ] (Law) A sworn statement in writing; a declaration in writing, signed and made upon oath before an authorized magistrate. Bouvier. Burrill. [ 1913 Webster ]

☞ It is always made ex parte, and without cross-examination, and in this differs from a deposition. It is also applied to written statements made on affirmation. [ 1913 Webster ]

Syn. -- Deposition. See Deposition. [ 1913 Webster ]

n. [ Cf. OF. aidance. ] Aid. [ R. ] [ 1913 Webster ]

Aidance 'gainst the enemy. Shak. [ 1913 Webster ]

a. [ Cf. F. aidant, p. pr. of aider to help. ] Helping; helpful; supplying aid. Shak. [ 1913 Webster ]

n. 1. 1 in some classifications considered the family comprising the giant pandas.
Syn. -- family Ailuropodidae. [ WordNet 1.5 ]

n. 1. 1 a family comprising the bubble shells.
Syn. -- family Akeridae. [ WordNet 1.5 ]

prop. n. A natural family of fish comprising the bonefish.
Syn. -- family Albulidae. [ WordNet 1.5 ]

a. (Chem.) Of the nature of an albuminoid. [ 1913 Webster ]

n. [ LL. alidada, alhidada, fr. Ar. al-'idāda a sort of rule: cf. F. alidade. ] The portion of a graduated instrument, as a quadrant or astrolabe, carrying the sights or telescope, and showing the degrees cut off on the arc of the instrument Whewell. [ 1913 Webster ]

{ } a. [ L. ala wing + E. ethomoid. ] (Anat.) Pertaining to expansions of the ethmoid bone or cartilage. [ 1913 Webster ]

{ } a. [ L. ala wing + E. sphenoid. ] (Anat.) Pertaining to or forming the wing of the sphenoid; relating to a bone in the base of the skull, which in the adult is often consolidated with the sphenoid; as, alisphenoid bone; alisphenoid canal. [ 1913 Webster ]

{ } a. [ Alkali + -oid: cf. F. alcaloïde. ] 1. Pertaining to, resembling, or containing, alkali. [ 1913 Webster ]

2. of or pertaining to alkaloids. [ WordNet 1.5 ]

{ } a. [ Gr. &unr_; shaped like a sausage; &unr_; sausage + e'i^dos form. ] (Anat.) Of or pertaining to the allantois. [ 1913 Webster ]

n. 1. 1 the family of reptiles comprising the alligators, and including the caimans.
Syn. -- family Alligatoridae. [ WordNet 1.5 ]

n. 1. 1 a family of fish comprising the thresher sharks.
Syn. -- family Alopiidae. [ WordNet 1.5 ]

n. 1. 1 a family of flowering plants including the snowdrop, narcissus, and daffodil; in some classification systems considered a subfamily of the Liliaceae.
Syn. -- family Amaryllidaceae, amaryllis family [ WordNet 1.5 ]

{ } a. (Bot.) Of, pertaining to, or resembling, an order of plants differing from the lily family chiefly in having the ovary below the petals. The narcissus and daffodil are members of this family. [ 1913 Webster ]

n. A natural family of fish comprising the North American catfishes.
Syn. -- family Ameiuridae. [ WordNet 1.5 ]

n. 1. 1 a family comprising the sand lances.
Syn. -- family Ammodytidae. [ WordNet 1.5 ]

n. 1. 1 a family comprising the lancelets.
Syn. -- family Amphioxidae, Branchiostomidae, family Branchiostomidae. [ WordNet 1.5 ]

{ } a. 1. Almond-shaped. [ 1913 Webster ]

2. Pertaining to, or having the nature of, the rock amygdaloid. [ 1913 Webster ]

{ } a. [ L. amylum starch + -oid. ] Resembling or containing starch; starchlike. AS
Syn. -- starchlike, amylaceous [ 1913 Webster ]

n. 1. 1 a large family of solitary short-tongued bees most of which burrow in the ground.
Syn. -- family Andrenidae. [ WordNet 1.5 ]

n. a family comprising the alligator lizards.
Syn. -- family Anguidae. [ WordNet 1.5 ]

n. a natural family of eels that live in fresh water as adults but return to the sea to spawn.
Syn. -- family Anguillidae. [ WordNet 1.5 ]

n. a family of aquatic birds of South America. They are called screamers due to their harsh trumpeting call.
Syn. -- family Anhimidae. [ WordNet 1.5 ]

‖n. pl. [ NL. See Annelid. ] (Zool.) A division of the Articulata, having the body formed of numerous rings or annular segments, and without jointed legs. The principal subdivisions are the Chætopoda, including the Oligochæta or earthworms and Polychæta or marine worms; and the Hirudinea or leeches. See Chætopoda. [ 1913 Webster ]

{ } a. [ F. annélide, fr. anneler to arrange in rings, OF. anel a ring, fr. L. anellus a ring, dim. of annulus a ring. ] (Zool.) Of or pertaining to the Annelida. -- n. One of the Annelida. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. annulus ring + -oid. ] (Zool.) A division of the Articulata, including the annelids and allied groups; sometimes made to include also the helminths and echinoderms. [ Written also Annuloidea. ] [ 1913 Webster ]

n. 1. 1 the family comprising the deathwatch beetles.
Syn. -- family Anobiidae. [ WordNet 1.5 ]

n. 1. 1 a natural family comprising the flashlightfishes.
Syn. -- family Anomalopidae. [ WordNet 1.5 ]

prop. n. A natural family of feather stars; formerly called family Comatulidae.
Syn. -- family Antedonidae [ WordNet 1.5 ]

‖n. pl. [ NL., fr. Gr. 'a`nqrwpos man. ] (Zool.) The group that includes man only. [ 1913 Webster ]

a. Anthropoid. [ 1913 Webster ]

n. 1. 1 a family of insects comprising the bees; examples are: honeybees; carpenter bees; bumblebees.
Syn. -- family Apidae. [ WordNet 1.5 ]

n. 1. 1 a family of mammals comprising the mountain beavers.
Syn. -- family Aplodontiidae. [ WordNet 1.5 ]

a. 1. (Astron.) Of or pertaining to the apsides of an orbit. [ 1913 Webster ]

2. (Arch.) Of or pertaining to the apse of a church; as, the apsidal termination of the chancel. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. &unr_; spider. ] (Zool.) One of the classes of Arthropoda. See Illustration in Appendix. [ 1913 Webster ]

☞ They have four pairs of legs, no antennæ nor wings, a pair of mandibles, and one pair of maxillæ or palpi. The head is usually consolidated with the thorax. The respiration is either by trancheæ or by pulmonary sacs, or by both. The class includes three principal orders: Araneina, or spiders; Arthrogastra, including scorpions, etc.; and Acarina, or mites and ticks. [ 1913 Webster ]

n. [ Gr. &unr_; spider. ] (Zool.) One of the Arachnida. [ 1913 Webster ]

a. (Anat.) Pertaining to the arachnoid membrane; arachnoid. [ 1913 Webster ]

adj. [ from the order Araneida. ] relating to or resembling a spider.
Syn. -- araneidan. [ WordNet 1.5 ]

a. (Zool.) Of or pertaining to the Araneina or spiders. -- n. One of the Araneina; a spider. [ 1913 Webster ]