(dentistry) Pertaining to adhesive systems for bonding fillings to teeth that require the application of phosphoric acid in a separate etching step .

A cultural, political, and religious right to life belief opposed to abortion, capital punishment, economic injustice, euthanasia or assisted suicide, and war.

(mathematics, mathematical analysis) The alternating sum of the Dirichlet series expansion of the Riemann zeta function: 𝜂(s)=∑ₙ₌₁ ᪲(-1)ⁿ⁻¹/nˢ=1/(1ˢ)-1/(2ˢ)+1/(3ˢ)-1/(4ˢ)+⋯.

Alternative form of polyetheretherketone

An elaborate, stylized version of the Christian cross symbol that is unique to Ethiopia and Eritrea.

(history) A former country in East Africa, a communist government that existed in Ethiopia from 1987 to 1991.

(religion, philosophy, psychology) The condition in which all reality is experienced in the present, with the past contained only in memory and the future only in anticipation or speculation.

One who commits or collaborates in ethnic cleansing.

plural of ethnic cleanser

(astronomy) A stellar system in the constellation of Carina.