CONCENTRIC
Con*cen"tric, n.
Defn: That which has a common center with something else.
Its pecular relations to its concentrics. Coleridge.
CONCENTRICALLY
Con*cen"tric*al*ly, adv.
Defn: In a concentric manner.
CONCENTRICITY
Con`cen*tric"i*ty, n.
Defn: The state of being concentric.
CONCENTUAL
Con*cen"tu*al, a. [From Concent.]
Defn: Possesing harmony; accordant. [R.] Warton.
CONCEPT Con"cept, n. Etym: [L. conceptus (cf. neut. conceptum fetus), p. p. of concipere to conceive: cf. F. concept. See Conceit.]
Defn: An abstract general conception; a notion; a universal. The words conception, concept, notion, should be limited to the thought of what can not be represented in the imagination; as, the thought suggested by a general term. Sir W. Hamilton.