| lacerta | 1. <zoology> A genus of lizards. See Lizard. Formerly it included nearly all the known lizards. It is now restricted to certain diurnal Old World species, like the green lizard (Lacerta viridis) and the sand lizard (L. Agilis), of Europe. 2. <astronomy> The Lizard, a northern constellation. Origin: L. A lizard. See Lizard. Source: Websters Dictionary (01 Mar 1998) |
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| lacertian | <zoology> Like a lizard; of or pertaining to the Lacertilia. One of the Lacertilia. Origin: Cf. F. Lacertien. Source: Websters Dictionary (01 Mar 1998) |
| lacertilia | <zoology> An order of Reptilia, which includes the lizards. They are closely related to the snakes, and life the latter, usually have the body covered with scales or granules. They usually have eyelids, and most of then have well-formed legs; but in some groups (amphisbaena, glass-snake, etc) the legs are wanting and the body is serpentlike. None are venomous, unless Heloderma be an exception. The order includes the chameleons, the Cionocrania, or typical lizards, and the amphisbaenas. See Amphisbaena, Gecko, Gila monster, and Lizard. Origin: NL, fr. L.lacertus a lizard. Source: Websters Dictionary (01 Mar 1998) |
| lacertiloid | <zoology> Like or belonging to the Lacertilia. Origin: Lacertilia. Source: Websters Dictionary (01 Mar 1998) |
| lacertine | <zoology> Lacertian. Source: Websters Dictionary (01 Mar 1998) |
| lacertus | Origin: L, the upper arm. <anatomy> A bundle or fascicle of muscular fibres. Source: Websters Dictionary (01 Mar 1998) |
| lacertus cordis | One of the trabeculae carneae. (05 Mar 2000) |
| lacertus fibrosus | Aponeurosis bicipitalis, radiating fibres from the tendon of insertion of the biceps which form a triangular band passing obliquely across the hollow of the elbow to the ulnar side and becoming merged into the deep fascia of the forearm. Formerly called "grace Dieu" fascia, it serves to protect the brachial artery and median nerve during phlebotomy of median cubital vein. Synonym: aponeurosis musculi bicipitis brachii, bicipital fascia, lacertus fibrosus, semilunar fascia. (05 Mar 2000) |
| lacertus medius | <anatomy> The wide fibrous band interconnecting the anterior surfaces of the vertebral bodies. Synonym: lacertus medius, ligamentum longitudinale anterius. (05 Mar 2000) |
| lacertus musculi recti lateralis | <anatomy> The part of the tendon of origin of the lateral rectus muscle attaching to the greater wing of the sphenoid bone, lateral to the common tendinous ring; often incorrectly equated to the lateral check ligament of the eyeball. Synonym: lacertus musculi recti lateralis. (05 Mar 2000) |
| lacertus of lateral rectus muscle | <anatomy> The part of the tendon of origin of the lateral rectus muscle attaching to the greater wing of the sphenoid bone, lateral to the common tendinous ring; often incorrectly equated to the lateral check ligament of the eyeball. Synonym: lacertus musculi recti lateralis. (05 Mar 2000) |
| lacewing | <zoology> Any one of several species of neuropterous insects of the genus Chrysopa and allied genera. They have delicate, lacelike wings and brilliant eyes. Their larvae are useful in destroying aphids. Synonym: lace-winged fly, and goldeneyed fly. Source: Websters Dictionary (01 Mar 1998) |
| Lachman test | A manoeuvre to detect deficiency of the anterior cruciate ligament; with the knee flexed 20 to 30 degrees, the tibia is displaced anteriorly relative to the femur; a soft endpoint or greater than 4 millimeters of displacement is positive (abnormal). (05 Mar 2000) |
| lachman's test | <investigation> A physical examination technique used to detect injury to the anterior cruciate ligament in the knee. The examiner will have you lay on your back with your knee bent at a 30 degree angle. Holding the end portion of your thigh with one hand and the top of the shin with the other hand, the examiner will apply slow pressure to the back of the of the proximal tibia (just below the knee). Increased looseness in the knee joint is indicative of an anterior cruciate ligament injury. (27 Sep 1997) |
| lachrymal | 1. Of or pertaining to tears; as, lachrymal effusions. 2. <anatomy> Pertaining to, or secreting, tears; as, the lachrymal gland. Pertaining to the lachrymal organs; as, lachrymal bone; lachrymal duct. Origin: Cf. F. Lacrymal. See Lachrymose. Source: Websters Dictionary (01 Mar 1998) |