1 Eczema is not a single disease but a reaction pattern of the skin produced by a number conditions. 2  Atopic dermatitis, a common causes of eczema, is more prevalent in those with asthma and hay fever. 3  Eczema appears as small blisters that can weep and ooze, or as crusted, thickened plaques of skin.
concatenation (kÉnËkÃ¦tÉªËneÉªÊÉn) n 1. a series of interconnected events, concepts, etc 2. the act of linking together or the state of being joined 3. (Logic) logic a function that forms a single string of symbols from two given strings by placing the second after the first.
Chambers 20th Century Dictionary (0.00 / 0 votes) Rate this definition: Collimation. kol-li-mÄâ²shun, n. the adjustment of the line of sight of a telescope.âv.t. Colâ²limÄte.ân. CollimÄâ²tor, a subsidiary telescope used to detect errors in collimation, when adjusting for transit observations. [L.