Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

46Maggenti and Gardnerambrosia n. [Gr. ambrotos, immortal] (ARTHRO: Insecta) Fungicultures cultivated by scolytid beetles to feed their larvae;sometimes used to designate that part of the fungus thatgrows out into the burrows and is eaten by the beetles. seebee-bread, fungus garden.ambulacral areas (ECHINOD: Asteroidea) The radially arrangedarms (typically 5) bearing the tube feet or podia.see interambulacral areas.ambulacral groove (ECHINOD: Asteroidea) A groove or furrowbordered by large spines extending along the oral surfaceof each arm of sea stars, that contain two to four rows ofsmall tubular projections called feet or podia.ambulacral ridge (ECHINOD: Asteroidea) The internal ridge ofthe external ambulacral groove.ambulacriform a. [L. ambulare, to walk; forma, shape] Resemblingor having the form of an ambulacrum.ambulacrum n.; pl. -lacra [L. ambulare, to walk] 1. (ARTHRO:Chelicerata) The adhesive disc of hooks that terminate thetarsus of ticks. 2. (ARTHRO: Insecta) The walking leg. 3.(ECHINOD) Plates with pores forming the test, arranged in 5or more rows, where the podia of the water-vascular systemproject to the exterior.ambulate v.i. [L. ambulare, to walk] To walk or move about.ambulatory a. [L. ambulare, to walk] Having the power ofwalking or moving from place to place.ambulatory leg see pereopodambulatory rosette (ARTHRO: Insecta) In Neuroptera, a prehensile"holdfast" organ located at the tip of the abdomenthat aids in locomotion of larval snakeflies.ambulatory setae 1. (ARTHRO: Insecta) Hairs or bristles onthe ventral segments of the abdomen. 2. (NEMATA: Adenophorea)Hollow tubelike projections used for locomotion.see adhesion tubes.ambulatory wart see ampullaame- see amoe- for words not found hereameiosis n. [Gr. a, without; meiosis, to make smaller] Failureof meiosis that is replaced by a form of nuclear division not