大熊猫 dàxióngmāo giant panda (Ailuropoda melanoleuca)

How to remember 大熊猫: 大 big + 熊 bear + 猫 cat = giant panda (Ailuropoda melanoleuca).

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The full, formal name for the giant panda - 大熊猫是中国的国宝 (dàxióngmāo shì Zhōngguó de guóbǎo) the giant panda is China's national treasure.
In casual speech people just say 熊猫 (xióngmāo); 大熊猫 is the precise term used to distinguish it from 小熊猫 (xiǎoxióngmāo, the red/lesser panda).
Note the 猫 (cat) inside the name is historical - a panda is a bear, not a cat.