focal
focal is defined in Webster's Unabridged Dictionary (1913) with 1 sense, and appears in Roget's Thesaurus (1911) with 40 related terms. The full text of each entry is reproduced verbatim below.
Definitions
- 1.Belonging to,or concerning, a focus; as, a focal point. Focal distance, or length,of a lens or mirror (Opt.), the distance of the focus from the surface of the lens or mirror, or more exactly, in the case of a lens, from its optical center. --Focal distance of a telescope, the distance of the image of an object from the object glass.
Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
Synonyms
Related terms (Roget's 1911)
- axial
- axis
- azygous
- backbone
- bring
- buoyancy
- center
- central
- centrality
- centralization
- centralize
- centrally
- centrical
- column
- concentrate
- concentration
- concentric
- converge
- convergence
- core
- eye
- focus
- gravity
- heart
- hotbed
- kernel
- marrow
- metacenter
- middle
- middlemost
- midst
- nave
- navel
- nucleolus
- nucleus
- oscillation
- percussion
- pith
- pole
- pressure
Source: Roget's Thesaurus, 1911 edition (public domain, via Project Gutenberg eBook #10681).
Related questions
Sources
- Definitions: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
- Synonyms & antonyms: Roget's Thesaurus, 1911 edition (public domain, via Project Gutenberg eBook #10681).
- Canonical URL: https://worddirectanswers.com/word/focal
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