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.
EXPLORING THE DEEPER SIDE OF GRATEFULNESS. Gratitude as a way of seeing. The only problem with all these great discoveries in favor of gratitude is that appreciation and gratitude are not like mental faucets that we can just turn on at will. Gratefulness has two sides. Expressing gratitude is partly a conscious action, like opening a door or telling a story.