An Etymological Dictionary of Astronomy and Astrophysics
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A star that presents very low → iron  → abundances [Fe/H] < -4 but an → anomalous richness in carbon. CEMP stars have been defined as a subset of → metal-poor stars that exhibit elevated [C/Fe] ≥ +1.0. It has been recognized that ~15-20% of stars with [Fe/H] < -2.0 are carbon enhanced. This fraction rises to 30% for [Fe/H] < -3.0, to 40% for [Fe/H] < -3.5, and ~75% for [Fe/H] < -4.0. This increasing trend of CEMP-star frequency with declining [Fe/H] is confirmed by the observation of many thousands of CEMP stars (Daniela Carollo + ApJ 2014, 788, 180). See also → extremely metal-poor star (EMPS)

→ carbon; → enhance; → metal; → metal; → poor; → star.

To raise to a higher degree; intensify; magnify (Dictionary.com).

M.E. enhauncen, from Anglo-Fr. enhauncer, from O.Fr. enhaucier "make higher, make greater; raise in esteem," from V.L. *inaltiare, from L.L. inaltare "raise, exalt," from altare "make high," from altus "high."

Bolandidan, from boland "high," related to bâlâ "up, above, high, elevated, height," borz, "height, magnitude," → magnitude.

An increase or improvement in value, extent, or quality.

Verbal noun of → enhance.