|single-celled colonial algae occurring in soil and on moist rocks and vegetation and also as a slime or scum on ponds and stagnant waters|
|pertaining to or provided with vessels or ducts that convey fluids, as blood, lymph, or sap|
|—n (foll by with |
|1.||a natural liking, taste, or inclination towards a person or thing|
|2.||the person or thing so liked|
|3.||a close similarity in appearance or quality; inherent likeness|
|4.||Compare consanguinity relationship by marriage or by ties other than of blood, as by adoption|
|5.||similarity in structure, form, etc, between different animals, plants, or languages|
|a. the tendency for two substances to combine; chemical attraction|
|b. A a measure of the tendency of a chemical reaction to take place expressed in terms of the free energy change|
|7.||biology a measure of the degree of interaction between two molecules, such as an antigen and antibody or a hormone and its receptor|
|[C14: via Old French from Latin affīnitāt- connected by marriage, from affīnis bordering on, related]|
affinity af·fin·i·ty (ə-fĭn'ĭ-tē)
An attraction or force between particles that causes them to combine.
The attraction between an antigen and an antibody.
A relationship or resemblance in structure between species that suggests a common origin.
The selective staining of a tissue by a dye. The selective uptake of a dye, chemical, or other substance by a tissue.
|affinity (ə-fĭn'ĭ-tē) Pronunciation Key
relationship by alliance (2 Chr. 18:1) or by marriage (1 Kings 3:1). Marriages are prohibited within certain degrees of affinity, enumerated Lev. 18:6-17. Consanguinity is relationship by blood.