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adj. 1. a. Of or relating to an actual, specific thing or instance; particular: had the concrete evidence needed to convict. b. Relating to nouns, such as flower or rain, that denote a material or tangible object or phenomenon. 2. Existing in reality or in real experience; perceptible by the senses; real: concrete objects such as trees. 3. Formed by the coalescence of separate particles or parts into one mass; solid. 4. Made of hard, strong, conglomerate construction material. n. (kŏnkrēt′, kŏng-, kŏn-krēt, kŏng-) 1. A hard, strong construction material consisting of sand, conglomerate gravel, pebbles, broken stone, or slag in a mortar or cement matrix. 2. A mass formed by the coalescence of particles. v. (kŏnkrēt′, kŏng-, kŏn-krēt, kŏng-) con·cret·ed, con·cret·ing, con·cretes v.tr. 1. To build, treat, or cover with hard, strong conglomerate construction material. 2. To form into a mass by coalescence or cohesion of particles or parts. v.intr. To harden; solidify. [Middle English concret, from Latin concrētus, past participle of concrēscere, to grow together, harden : com-, com- + crēscere, to grow; see ker-2 in the Appendix of Indo-European roots.] con·cretely adv. con·creteness n. |
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