ramose a. [L. ramosus, branching] 1. Branching, having lateral divisions full of branches; branch-like; ramified. 2. (ARTHRO: Insecta) In immatures, setae with branches, usually originating at the base.
ramp n. [OF. ramper, to climb] (MOLL: Gastropoda) Abapically inclined flattened band on the shell surface, limited abaxi-ally by a ridge or angulation.
ramus n.; pl. rami [L. ramus, branch] 1. A branch or outgrowth of a structure. 2. (ANN) The notopodium and neuropodium that form the two parts of a parapodium; the two rami. 3. (ARTHRO: Crustacea) The flagellum. 4. (ARTHRO: Insecta) a. One of paired structures linking valvulae and valvifers of the eighth and ninth abdominal segments; rami valvularum. b. In Collembola, the distal portions of the corpus. 5. (ROTIF) One of two usually thick, triangular pieces extending from the fulcrum of the mastax.
random fixation The complete loss of one allele, with fixation of the other, in a population owing to accidents of sampling.
ranking v. [OF. ranc, row] The appropriate placement of a taxon in the hierarchy of categories.
rapacious a. [L. rapaxacis, grasping] Subsisting on prey; predacious; voracious; predatory.
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