Defn: Any one of numerous species of marine annelids of the family
Syllidæ.
Note: Many of the species are phosphorescent; others are remarkable for undergoing strobilation or fission and for their polymorphism. The egg, in such species, develops into an asexual individual. When mature, a number of its posterior segments gradually develop into one or more sexual individuals which finally break away and swim free in the sea. The males, females, and neuters usually differ greatly in form and structure.
SYLLOGISM Syl"lo*gism, n. Etym: [OE. silogisme, OF. silogime, sillogisme, F. syllogisme, L. syllogismus, Gr. syllogismo`s a reckoning all together, a reasoning, syllogism, fr. syllogi`zesqai to reckon all together, to bring at once before the mind, to infer, conclude; sy`n with, together + logi`zesqai to reckon, to conclude by reasoning. See Syn-, and Logistic, Logic.] (Logic)
Defn: The regular logical form of every argument, consisting of three propositions, of which the first two are called the premises, and the last, the conclusion. The conclusion necessarily follows from the premises; so that, if these are true, the conclusion must be true, and the argument amounts to demonstration;
Note: as in the following example: Every virtue is laudable; Kindness is a virtue; Therefore kindness is laudable. These propositions are denominated respectively the major premise, the minor premise, and the conclusion.
Note: If the premises are not true and the syllogism is regular, the reasoning is valid, and the conclusion, whether true or false, is correctly derived.
SYLLOGISTIC; SYLLOGISTICAL Syl`lo*gis"tic, Syl`lo*gis"tic*al, a. Etym: [L. syllogisticus, Gr. syllogistique.]
Defn: Of or pertaining to a syllogism; consisting of a syllogism, or of the form of reasoning by syllogisms; as, syllogistic arguments or reasoning.
SYLLOGISTICALLY
Syl`lo*gis"tic*al*ly, adv.
Defn: In a syllogistic manner.