Many sulci are the product of a surface fold or junction, such as in the gums, where they fold around the neck of the tooth. The term sulcus is used in invertebrate zoology to describe folds, grooves, and boundaries, especially at the edges of sclerites or between segments. In botany and palynology, the surface morphology of seeds and pollen grains is termed sulcate if one or more sulci form major features.
Freebase(0.00 / 0 votes)Rate this definition: Gratitude. Gratitude, thankfulness, gratefulness, or appreciation is a feeling or attitude in acknowledgment of a benefit that one has received or will receive.
Humanity is so much kindness and tenderness toward man or beast as it would be inhuman not to have; we say of some act of care or kindness, common humanity requires it.. Generosity is self-forgetful kindness in disposition or action; it includes much besides giving; as, the generosity of forgiveness. Bounty applies to ample giving, which on a larger scale is expressed by munificence. Liberality indicates broad, genial kindly views, whether manifested in gifts or otherwise.