The Collaborative International Dictionary
Apposition \Ap`po*si"tion\, n. [L. appositio, fr. apponere: cf. F. apposition. See Apposite.]
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The act of adding; application; accretion.
It grows . . . by the apposition of new matter.
--Arbuthnot. The putting of things in juxtaposition, or side by side; also, the condition of being so placed.
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(Gram.) The state of two nouns or pronouns, put in the same case, without a connecting word between them; as, I admire Cicero, the orator. Here, the second noun explains or characterizes the first.
Growth by apposition (Physiol.), a mode of growth characteristic of non vascular tissues, in which nutritive matter from the blood is transformed on the surface of an organ into solid unorganized substance.