ligament groove (MOLL: Bivalvia) A narrow depression in the cardinal area for attachment of ligament fibers.
ligament pit (MOLL: Bivalvia) A broad depression in the cardinal area for ligament attachment.
ligament sac 1. (acantho) Encloses the genital apparatus of male and female; separates immature eggs from mature in females. 2. (moll) The sac housing the ligaments attached to the base of the teeth.
ligament strand (acantho) The nucleated, syncytial band of tissue lying between the ligament sacs or along the ventral face of the single ligament sac.
ligament suture Elongate space behind the umbones, apparent after the ligament is gone.
ligneous a. [L. lignum, wood] Of or like wood; woody.
lignicolous a. [L. lignum, wood; cola, inhabitant] Living in wood.
lignivorous a. [L. lignum, wood; vorare, to devour] Eating wood or woody tissue.
ligula n.; pl. -lae [L. ligula, little tongue] 1. (ANN: Polychaeta) Lobe of the parapodium. 2. (ARTHRO: Insecta) a. The terminal lobe or lobes of the labium; the glossae and parag-lossae collectively. b. In adult dipteran mosquitoes, the sharp-pointed lobe on the midline of the labium between the labella; ligular lobe. c. In male Odonata, the strongly curved process over the stem of the prophallus. 3. (BRYO) A calcareous projection from the cross-bar of an avicu-larium. 4. (MOLL: Cephalopoda) In octopods, a specialized terminal area of the hectocotylus.
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