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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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288Maggenti and Gardnergills.dicentric a. [Gr. dis, twice; kentron, midpoint <strong>of</strong> a circle] Havingchromosomes or chromatids with two centromeres.dicerous, dicerus a. [Gr. dis, twice; keros, horn] Having twohorns, tentacles or antennae.dichogamy n. [Gr. dicha, in two; gamos, marriage] The production<strong>of</strong> male and female gametes at different times inan hermaphroditic organism; protogynous and protandroushermaphrodites. dichogamous a. see homogamy.dichopatry n. [Gr. dicha, in two; L. patria, native country]Populations geographically separated to the extent that individuals<strong>of</strong> the involved species never meet. see parapatricspeciation.dichoptic a. [Gr. dicha, in two; ops, sight] Having eyes separateddorsally by integument. see holoptic.dichotomize v.t. & i. [Gr. dicha, in two; temnein, to cut] Tocut into two parts; to divide into pairs.dichotomous a. [Gr. dicha, in two; temnein, to cut] Divided ordividing into two parts; successive bifurcation; two-forked.dichotomy n.dichotriaene n. [Gr. dicha, in two; triaina, trident] (PORIF) Atetractinal megasclere with forked clads.dichroism n. [Gr. dis, twice; chros, color] The property <strong>of</strong>showing two very different colors, one by transmitted lightand the other by reflected light, or as some dyes stainingdifferent tissues different colors.dichromatic a. [Gr. dis, twice; chroma, color] 1. Having twocolor varieties. 2. Seeing only two colors.dichthadiform ergatogyne (ARTHRO: Insecta) In army ants,an individual <strong>of</strong> an aberrant reproductive caste, characterizedby a wingless alitrunk, large gaster, and expandedpostpetiole.dichthadiigyne n. [Gr. dichthadios, double; gyne, female](ARTHRO: Insecta) A permanently wingless ant with greatlyreduced eyes, massive pedicel, abdomen and ovaries, andstrong legs.dicondylic a. [Gr. dis, twice; kondylos, knuckle] Pertaining to

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