The Collaborative International Dictionary
Observable \Ob*serv"a*ble\, a. [L. observabilis: cf. F. observable.]
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Capable of being observed; discernible; noticeable.
--Sir. T. Browne.The difference is sufficiently observable.
--Southey. Worthy of being observed; important enough to be noted or celebrated; as, an observable anniversary.
Noteworthy; remarkable. [PJC] -- Ob*serv"a*ble*ness, n. -- Ob*serv"a*bly, adv.
Wiktionary
adv. 1 (context degree English) To a detectable degree, sufficient to be observed. 2 (context manner English) In an observable manner. 3 (context modal English) (non-gloss definition: Indicates that the proposition can be verified by observation.)
WordNet
adv. in an imperceptible manner or to an imperceptible degree; "the power of the Secretary of State in London increased gradually but imperceptibly" [syn: imperceptibly, unnoticeably] [ant: perceptibly]
Usage examples of "observably".
Line, have a secret, curled-up dimension, and if this dimension expands to an observably large size.
The evolution from one to two observably large space dimensions is dramatic.
All these old sober Boston blue-collar men's irrevocable tattoos fading almost observably under the low-budget fluorescence of church basements and hospital auditoria Ewell watched and charted and cross-referenced them, moved.